CN108751955A - A kind of aluminium oxide-titanium carbonitride complex phase bulletproof ceramic and preparation method thereof - Google Patents
A kind of aluminium oxide-titanium carbonitride complex phase bulletproof ceramic and preparation method thereof Download PDFInfo
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Abstract
The present invention relates to a kind of aluminium oxide-titanium carbonitride complex phase bulletproof ceramics and preparation method thereof.Its technical solution is：Using the high titanium bauxite raw material micro mist of 92~99 mass parts and the carbonaceous material of 1~8 mass parts as raw material；First the soluble salt of 0.1~8 mass parts is dissolved in the water of 4~10 mass parts, obtains salting liquid；The raw material and the salting liquid are placed in planetary ball mill again, is uniformly mixed, obtains mixture；By the mixture under the conditions of 100~150MPa under mechanical pressing, obtain green compact；Then the green compact are 12~36 hours dry under the conditions of 110~200 DEG C, 1~8 hour is kept the temperature to get aluminium oxide-titanium carbonitride complex phase bulletproof ceramic under the conditions of nitrogen atmosphere and 1550~1750 DEG C.The present invention is at low cost and simple for process, and prepared aluminium oxide-titanium carbonitride complex phase bulletproof ceramic has the characteristics that intensity is high, hardness is high, toughness is high, low containing the transgranular stomata of a large amount of nanoscales and bulk density.
Description
Technical field
The invention belongs to Al2O3Base complex phase bulletproof ceramic technical field.More particularly to a kind of aluminium oxide-titanium carbonitride complex phase
Bulletproof ceramic and preparation method thereof.
Background technology
Bullet resistant material is that be widely used in spacecraft, armored vehicle, helicopter, tank, self-propelled gun and individual soldier shellproof
The protective material of clothes, the helmet, shellproof scuta can resist the attack of weapon to a certain extent, play protection military equipment and
The effect of personnel, therefore, bullet resistant material are one of critical materials indispensable in modern military war, and the quality of performance is straight
The fight capability that restrict military equipment is connect, high performance ballistic material is developed, has extremely important meaning for national defense construction.
In order to have both excellent capability of resistance to penetration, impact resistance and anti-avalanche ability, while military affairs are not filled again
Standby maneuverability causes tremendous influence, usually requires that bullet resistant material has high rigidity, high tenacity, high intensity and low-density.By
In Al2O3Material sintering character is excellent, mature preparation process, production cost are low and abundant raw material, Al2O3Bullet-resistant ceramic material is
The mainstream bullet resistant material that China uses at present.However, compared to non-oxide ceramic material, Al2O3It is ceramic material poor toughness, close
Spending higher defect reduces its S. E. A. and resists multiple impact ability, hinders its further expanded application.
It is directed to Al both at home and abroad2O3The toughening of ceramics has carried out numerous studies：(Xu L H, Xie Z P, the Gao L such as Xu L H
C,et al.Synthesis,evaluation and characterization of alumina ceramics with
elongated grains[J].Ceramics International,2005,31(7):953-958) introduce through low temperature calcination
Aluminium hydroxide as crystal seed, and by regulating and controlling preparation process, the self-toughening alumina ceramics with plate-like grain have been made,
Fracture toughness is 7.1MPa m1/2；(Trusty P A, the Yeomans J A.The toughening of such as Trusty P A
alumina with iron:Effects of iron distribution on fracture toughness[J]
.Journal of the European Ceramic Society,1997,17(4):495-504) introduce the Fe systems of 20vol%
For Al2O3Base complex phase ceramic, fracture toughness reach 10.9MPa m respectively1/2, however its density is higher；(the Than such as Than W H
W H,Chen R Z,Wang T C,et al.Mechanical properties of Al2O3/ZrO2composites[J]
.Journal of the European Ceramic Society,2002,22(16):2827-2833.) by controlling ZrO2
The degree of stability of particle introduces the ZrO that 10vol% meso-position radius is 0.3 μm2Particle has been prepared fracture toughness and has reached 11.8MPa
m1/2Complex phase ceramic, however its density is higher；(Garnier V, Fantozzi G, the Nguyen D, et such as Garnier V
al.Influence of SiC whisker morphology and nature of SiC/Al2O3interface on
thermomechanical properties of SiC reinforced Al2O3composites[J].Journal of
the European Ceramic Society,2005,25(15):The SiC whiskers of 35vol% 3485-3493) are introduced, it will
Al2O3Ceramic fracture toughness is by 5.4MPa m1/2It is promoted to 7.9MPa m1/2。
In conclusion Al can be improved by controlling material microstructure and introducing the measures such as the second reinforced phase2O3Ceramics
Toughness, however, method for toughening is to Al at present2O3The promotion degree of ceramic fracture toughness is limited, and Part Methods can also cause material
Expect that density increases, intensity and hardness reduce, has an adverse effect for its bulletproof performance.
Invention content
The present invention is directed to overcome prior art defect, task to be to provide aluminium oxide-carbon a kind of at low cost and simple for process
The preparation method of titanium nitride complex phase bulletproof ceramic；The aluminium oxide prepared with this method-titanium carbonitride complex phase bulletproof ceramic intensity height,
Hardness is high, toughness is high, low containing the transgranular stomata of a large amount of nanoscales and bulk density.
To complete above-mentioned task, the technical solution adopted in the present invention is：It is given birth to the high titanium bauxite of 92~99 mass parts
Expect that the carbonaceous material of micro mist and 1~8 mass parts is raw material；The soluble salt of 0.1~8 mass parts is first dissolved in 4~10 mass parts
Water in, obtain salting liquid；The raw material and the salting liquid are placed in planetary ball mill again, is uniformly mixed, is mixed
Material；By the mixture under the conditions of 100~150MPa under mechanical pressing, obtain green compact；Then by the green compact 110~
It is 12~36 hours dry under the conditions of 200 DEG C, 1~8 hour is kept the temperature to get oxidation under the conditions of nitrogen atmosphere and 1550~1750 DEG C
Aluminium-titanium carbonitride complex phase bulletproof ceramic.
The soluble salt is aluminium chloride, aluminum nitrate, magnesium chloride, magnesium nitrate, magnesium sulfate, zirconium chloride, basic zirconium chloride, nitric acid
1~4 kind in oxygen zirconium, zirconium sulfate, zirconium carbonate ammonium, zirconium nitrate and titanium chloride.
The Al of the high titanium bauxite raw material micro mist2O3Content>80wt%, TiO2Content>2wt%；High titanium bauxite raw material
The grain size D of micro mist50It is 1~8 μm.
The carbonaceous material is 1~4 kind in carbon black, expanded graphite, starch, phenolic resin, sucrose and pitch.
Due to the adoption of the above technical scheme, the present invention has following good effect compared with prior art：
(1) present invention prepares Al directly using high titanium bauxite raw material as raw material2O3Base complex phase bulletproof ceramic, production cost are low
With it is simple for process.
(2) present invention introduces soluble salt, it is described can salt hydrolyze when being dissolved in the water, hydrated cation can be formed,
Hydrated cation exists in the form of the tetramer or dimer, and the bridge formation hydroxyl having can be connected with each other, to be formed in situ
Network structure with nanoaperture.During heat treatment, due to the tetramer or dimer decompose the nano-particle generated with
The difference of high titanium bauxite micro mist sintering character so that above-mentioned nanoaperture, in intra-die, is received by quick closure to be formed
The transgranular stomata of meter ruler cun.The presence of the nanocrystalline inner air vent can effectively absorb the energy for reducing crack propagation, and to split
Bridging and deflection occur for line, promote the mechanical property of aluminium oxide-titanium carbonitride complex phase bulletproof ceramic；In addition, the introducing energy of stomata
Enough reduce the density of aluminium oxide-titanium carbonitride complex phase bulletproof ceramic.
(3) present invention utilizes the TiO in high titanium bauxite raw material2Component is formed in situ by CRN method
TiCN phases, since TiCN phases have excellent mechanical property, on the one hand, time interface, the effect of pinning dislocation can be formed in material
It can hinder crack propagation；It on the other hand, will be in aluminium oxide-titanium carbonitride due to the difference of TiCN phases and matrix coefficient of thermal expansion
Residual thermal stress is formed inside complex phase bulletproof ceramic so that bridging and deflection occur for crackle, and extensions path extends.Therefore, it is possible to
Further promote the toughness and intensity of aluminium oxide-titanium carbonitride complex phase bulletproof ceramic.
Based on above-mentioned good effect, the present invention can realize aluminium oxide-high tenacity of titanium carbonitride complex phase bulletproof ceramic, height
The good combination of intensity, high rigidity and low-density.
Aluminium oxide-titanium carbonitride complex phase bulletproof ceramic prepared by the present invention is after testing：Fracture toughness is 8~12MPa m1 /2；Compressive resistance is 2500~3000MPa；Vickers hardness is 12~18GPa；Bulk density is 3.0~3.3g/cm3；Average hole
Diameter is 100~300nm.
Therefore, the present invention is at low cost and simple for process, and prepared aluminium oxide-titanium carbonitride complex phase bulletproof ceramic has strong
Degree is high, hardness is high, toughness is high, containing the low feature of the transgranular stomata of a large amount of nanoscales and bulk density.
Specific implementation mode
The invention will be further described With reference to embodiment, not limiting of its scope.
In present embodiment：The Al of the high titanium bauxite micro mist2O3Content>80wt%, TiO2Content>2wt%,
Grain size D50It is 1~8 μm.It is repeated no more in embodiment.
Embodiment 1
A kind of aluminium oxide-titanium carbonitride complex phase bulletproof ceramic and preparation method thereof.With the high titanium aluminium alum of 95~99 mass parts
Autochthonal material micro mist and the carbonaceous material of 1~5 mass parts are raw material；The soluble salt of 0.1~4 mass parts is first dissolved in 4~7 mass
In the water of part, salting liquid is obtained；The raw material and the salting liquid are placed in planetary ball mill again, is uniformly mixed, is mixed
Close material；By the mixture under the conditions of 100~130MPa under mechanical pressing, obtain green compact；Then by the green compact 150~
It is 12~24 hours dry under the conditions of 200 DEG C, 4~8 hours are kept the temperature to get oxidation under the conditions of nitrogen atmosphere and 1550~1650 DEG C
Aluminium-titanium carbonitride complex phase bulletproof ceramic.
The soluble salt is aluminium chloride, aluminum nitrate, magnesium chloride, magnesium nitrate, magnesium sulfate, zirconium chloride, basic zirconium chloride, nitric acid
One kind in oxygen zirconium, zirconium sulfate, zirconium carbonate ammonium, zirconium nitrate and titanium chloride.
The carbonaceous material is one kind in carbon black, expanded graphite, starch, phenolic resin, sucrose and pitch.
Aluminium oxide-titanium carbonitride complex phase bulletproof ceramic prepared by the present embodiment is after testing：Fracture toughness is 9~10MPa
m1/2；Compressive resistance is 2800~2900MPa；Vickers hardness is 16~18GPa；Bulk density is 3.2~3.25g/cm3；It is average
Aperture is 100~200nm.
Embodiment 2
A kind of aluminium oxide-titanium carbonitride complex phase bulletproof ceramic and preparation method thereof.With the high titanium aluminium alum of 95~99 mass parts
Autochthonal material micro mist and the carbonaceous material of 1~5 mass parts are raw material；The soluble salt of 0.1~4 mass parts is first dissolved in 4~7 mass
In the water of part, salting liquid is obtained；The raw material and the salting liquid are placed in planetary ball mill again, is uniformly mixed, is mixed
Close material；By the mixture under the conditions of 100~130MPa under mechanical pressing, obtain green compact；Then by the green compact 110~
It is 24~36 hours dry under the conditions of 160 DEG C, 1~5 hour is kept the temperature to get oxidation under the conditions of nitrogen atmosphere and 1650~1750 DEG C
Aluminium-titanium carbonitride complex phase bulletproof ceramic.
The soluble salt is aluminium chloride, aluminum nitrate, magnesium chloride, magnesium nitrate, magnesium sulfate, zirconium chloride, basic zirconium chloride, nitric acid
The mixture of two kinds of substances in oxygen zirconium, zirconium sulfate, zirconium carbonate ammonium, zirconium nitrate and titanium chloride.
The carbonaceous material is the mixed of two kinds of substances in carbon black, expanded graphite, starch, phenolic resin, sucrose and pitch
Close object.
Aluminium oxide-titanium carbonitride complex phase bulletproof ceramic prepared by the present embodiment is after testing：Fracture toughness be 8.5~
10MPa m1/2；Compressive resistance is 2800~2900MPa；Vickers hardness is 16~17GPa；Bulk density is 3.2~3.25g/
cm3；Average pore size is 100~200nm.
Embodiment 3
A kind of aluminium oxide-titanium carbonitride complex phase bulletproof ceramic and preparation method thereof.With the high titanium aluminium alum of 95~99 mass parts
Autochthonal material micro mist and the carbonaceous material of 1~5 mass parts are raw material；The soluble salt of 0.1~4 mass parts is first dissolved in 4~7 mass
In the water of part, salting liquid is obtained；The raw material and the salting liquid are placed in planetary ball mill again, is uniformly mixed, is mixed
Close material；By the mixture under the conditions of 120~150MPa under mechanical pressing, obtain green compact；Then by the green compact 150~
It is 12~24 hours dry under the conditions of 200 DEG C, 4~8 hours are kept the temperature to get oxidation under the conditions of nitrogen atmosphere and 1550~1650 DEG C
Aluminium-titanium carbonitride complex phase bulletproof ceramic.
The soluble salt is aluminium chloride, aluminum nitrate, magnesium chloride, magnesium nitrate, magnesium sulfate, zirconium chloride, basic zirconium chloride, nitric acid
The mixture of three kinds of substances in oxygen zirconium, zirconium sulfate, zirconium carbonate ammonium, zirconium nitrate and titanium chloride.
The carbonaceous material is the mixed of three kinds of substances in carbon black, expanded graphite, starch, phenolic resin, sucrose and pitch
Close object.
Aluminium oxide-titanium carbonitride complex phase bulletproof ceramic prepared by the present embodiment is after testing：Fracture toughness be 8.5~
10MPa m1/2；Compressive resistance is 2900~3000MPa；Vickers hardness is 17~18GPa；Bulk density is 3.2~3.3g/
cm3；Average pore size is 100~200nm.
Embodiment 4
A kind of aluminium oxide-titanium carbonitride complex phase bulletproof ceramic and preparation method thereof.With the high titanium aluminium alum of 95~99 mass parts
Autochthonal material micro mist and the carbonaceous material of 1~5 mass parts are raw material；The soluble salt of 0.1~4 mass parts is first dissolved in 4~7 mass
In the water of part, salting liquid is obtained；The raw material and the salting liquid are placed in planetary ball mill again, is uniformly mixed, is mixed
Close material；By the mixture under the conditions of 120~150MPa under mechanical pressing, obtain green compact；Then by the green compact 110~
It is 24~36 hours dry under the conditions of 160 DEG C, 1~5 hour is kept the temperature to get oxidation under the conditions of nitrogen atmosphere and 1650~1750 DEG C
Aluminium-titanium carbonitride complex phase bulletproof ceramic.
The soluble salt is aluminium chloride, aluminum nitrate, magnesium chloride, magnesium nitrate, magnesium sulfate, zirconium chloride, basic zirconium chloride, nitric acid
The mixture of four kinds of substances in oxygen zirconium, zirconium sulfate, zirconium carbonate ammonium, zirconium nitrate and titanium chloride.
The carbonaceous material is the mixed of four kinds of substances in carbon black, expanded graphite, starch, phenolic resin, sucrose and pitch
Close object.
Aluminium oxide-titanium carbonitride complex phase bulletproof ceramic prepared by the present embodiment is after testing：Fracture toughness is 8~9.5MPa
m1/2；Compressive resistance is 2900~3000MPa；Vickers hardness is 17~18GPa；Bulk density is 3.2~3.3g/cm3；It is average
Aperture is 100~200nm.
Embodiment 5
A kind of aluminium oxide-titanium carbonitride complex phase bulletproof ceramic and preparation method thereof.With the high titanium aluminium alum of 92~96 mass parts
Autochthonal material micro mist and the carbonaceous material of 4~8 mass parts are raw material；The soluble salt of 0.1~4 mass parts is first dissolved in 4~7 mass
In the water of part, salting liquid is obtained；The raw material and the salting liquid are placed in planetary ball mill again, is uniformly mixed, is mixed
Close material；By the mixture under the conditions of 100~130MPa under mechanical pressing, obtain green compact；Then by the green compact 150~
It is 12~24 hours dry under the conditions of 200 DEG C, 4~8 hours are kept the temperature to get oxidation under the conditions of nitrogen atmosphere and 1550~1650 DEG C
Aluminium-titanium carbonitride complex phase bulletproof ceramic.
The soluble salt is aluminium chloride, aluminum nitrate, magnesium chloride, magnesium nitrate, magnesium sulfate, zirconium chloride, basic zirconium chloride, nitric acid
One kind in oxygen zirconium, zirconium sulfate, zirconium carbonate ammonium, zirconium nitrate and titanium chloride.
The carbonaceous material is one kind in carbon black, expanded graphite, starch, phenolic resin, sucrose and pitch.
Aluminium oxide-titanium carbonitride complex phase bulletproof ceramic prepared by the present embodiment is after testing：Fracture toughness be 9.5~
11MPa m1/2；Compressive resistance is 2700~2800MPa；Vickers hardness is 15~17GPa；Bulk density is 3.1~3.2g/
cm3；Average pore size is 150~250nm.
Embodiment 6
A kind of aluminium oxide-titanium carbonitride complex phase bulletproof ceramic and preparation method thereof.With the high titanium aluminium alum of 92~96 mass parts
Autochthonal material micro mist and the carbonaceous material of 4~8 mass parts are raw material；The soluble salt of 0.1~4 mass parts is first dissolved in 4~7 mass
In the water of part, salting liquid is obtained；The raw material and the salting liquid are placed in planetary ball mill again, is uniformly mixed, is mixed
Close material；By the mixture under the conditions of 100~130MPa under mechanical pressing, obtain green compact；Then by the green compact 110~
It is 24~36 hours dry under the conditions of 160 DEG C, 1~5 hour is kept the temperature to get oxidation under the conditions of nitrogen atmosphere and 1650~1750 DEG C
Aluminium-titanium carbonitride complex phase bulletproof ceramic.
The soluble salt is aluminium chloride, aluminum nitrate, magnesium chloride, magnesium nitrate, magnesium sulfate, zirconium chloride, basic zirconium chloride, nitric acid
The mixture of two kinds of substances in oxygen zirconium, zirconium sulfate, zirconium carbonate ammonium, zirconium nitrate and titanium chloride.
The carbonaceous material is the mixed of two kinds of substances in carbon black, expanded graphite, starch, phenolic resin, sucrose and pitch
Close object.
Aluminium oxide-titanium carbonitride complex phase bulletproof ceramic prepared by the present embodiment is after testing：Fracture toughness is 10~11MPa
m1/2；Compressive resistance is 2650~2800MPa；Vickers hardness is 16~18GPa；Bulk density is 3.0~3.15g/cm3；It is average
Aperture is 150~300nm.
Embodiment 7
A kind of aluminium oxide-titanium carbonitride complex phase bulletproof ceramic and preparation method thereof.With the high titanium aluminium alum of 92~96 mass parts
Autochthonal material micro mist and the carbonaceous material of 4~8 mass parts are raw material；The soluble salt of 0.1~4 mass parts is first dissolved in 4~7 mass
In the water of part, salting liquid is obtained；The raw material and the salting liquid are placed in planetary ball mill again, is uniformly mixed, is mixed
Close material；By the mixture under the conditions of 120~150MPa under mechanical pressing, obtain green compact；Then by the green compact 150~
It is 12~24 hours dry under the conditions of 200 DEG C, 4~8 hours are kept the temperature to get oxidation under the conditions of nitrogen atmosphere and 1550~1650 DEG C
Aluminium-titanium carbonitride complex phase bulletproof ceramic.
The soluble salt is aluminium chloride, aluminum nitrate, magnesium chloride, magnesium nitrate, magnesium sulfate, zirconium chloride, basic zirconium chloride, nitric acid
The mixture of three kinds of substances in oxygen zirconium, zirconium sulfate, zirconium carbonate ammonium, zirconium nitrate and titanium chloride.
The carbonaceous material is the mixed of three kinds of substances in carbon black, expanded graphite, starch, phenolic resin, sucrose and pitch
Close object.
Aluminium oxide-titanium carbonitride complex phase bulletproof ceramic prepared by the present embodiment is after testing：Fracture toughness is 9~11MPa
m1/2；Compressive resistance is 2800~2900MPa；Vickers hardness is 16~17GPa；Bulk density is 3.1~3.25g/cm3；It is average
Aperture is 150~250nm.
Embodiment 8
A kind of aluminium oxide-titanium carbonitride complex phase bulletproof ceramic and preparation method thereof.With the high titanium aluminium alum of 92~96 mass parts
Autochthonal material micro mist and the carbonaceous material of 4~8 mass parts are raw material；The soluble salt of 0.1~4 mass parts is first dissolved in 4~7 mass
In the water of part, salting liquid is obtained；The raw material and the salting liquid are placed in planetary ball mill again, is uniformly mixed, is mixed
Close material；By the mixture under the conditions of 120~150MPa under mechanical pressing, obtain green compact；Then by the green compact 110~
It is 24~36 hours dry under the conditions of 160 DEG C, 1~5 hour is kept the temperature to get oxidation under the conditions of nitrogen atmosphere and 1650~1750 DEG C
Aluminium-titanium carbonitride complex phase bulletproof ceramic.
The soluble salt is aluminium chloride, aluminum nitrate, magnesium chloride, magnesium nitrate, magnesium sulfate, zirconium chloride, basic zirconium chloride, nitric acid
The mixture of four kinds of substances in oxygen zirconium, zirconium sulfate, zirconium carbonate ammonium, zirconium nitrate and titanium chloride.
The carbonaceous material is the mixed of four kinds of substances in carbon black, expanded graphite, starch, phenolic resin, sucrose and pitch
Close object.
Aluminium oxide-titanium carbonitride complex phase bulletproof ceramic prepared by the present embodiment is after testing：Fracture toughness be 9.5~
11MPa m1/2；Compressive resistance is 2700~2850MPa；Vickers hardness is 15~16GPa；Bulk density is 3.15~3.25g/
cm3；Average pore size is 150~250nm.
Embodiment 9
A kind of aluminium oxide-titanium carbonitride complex phase bulletproof ceramic and preparation method thereof.With the high titanium aluminium alum of 95~99 mass parts
Autochthonal material micro mist and the carbonaceous material of 1~5 mass parts are raw material；The soluble salt of 4~8 mass parts is first dissolved in 7~10 mass
In the water of part, salting liquid is obtained；The raw material and the salting liquid are placed in planetary ball mill again, is uniformly mixed, is mixed
Close material；By the mixture under the conditions of 100~130MPa under mechanical pressing, obtain green compact；Then by the green compact 150~
It is 12~24 hours dry under the conditions of 200 DEG C, 4~8 hours are kept the temperature to get oxidation under the conditions of nitrogen atmosphere and 1550~1650 DEG C
Aluminium-titanium carbonitride complex phase bulletproof ceramic.
The soluble salt is aluminium chloride, aluminum nitrate, magnesium chloride, magnesium nitrate, magnesium sulfate, zirconium chloride, basic zirconium chloride, nitric acid
One kind in oxygen zirconium, zirconium sulfate, zirconium carbonate ammonium, zirconium nitrate and titanium chloride.
The carbonaceous material is one kind in carbon black, expanded graphite, starch, phenolic resin, sucrose and pitch.
Aluminium oxide-titanium carbonitride complex phase bulletproof ceramic prepared by the present embodiment is after testing：Fracture toughness be 10.5~
11.5MPa m1/2；Compressive resistance is 2550~2700MPa；Vickers hardness is 13~14GPa；Bulk density be 3.05~
3.15g/cm3；Average pore size is 200~300nm.
Embodiment 10
A kind of aluminium oxide-titanium carbonitride complex phase bulletproof ceramic and preparation method thereof.With the high titanium aluminium alum of 95~99 mass parts
Autochthonal material micro mist and the carbonaceous material of 1~5 mass parts are raw material；The soluble salt of 4~8 mass parts is first dissolved in 7~10 mass
In the water of part, salting liquid is obtained；The raw material and the salting liquid are placed in planetary ball mill again, is uniformly mixed, is mixed
Close material；By the mixture under the conditions of 100~130MPa under mechanical pressing, obtain green compact；Then by the green compact 110~
It is 24~36 hours dry under the conditions of 160 DEG C, 1~5 hour is kept the temperature to get oxidation under the conditions of nitrogen atmosphere and 1650~1750 DEG C
Aluminium-titanium carbonitride complex phase bulletproof ceramic.
The soluble salt is aluminium chloride, aluminum nitrate, magnesium chloride, magnesium nitrate, magnesium sulfate, zirconium chloride, basic zirconium chloride, nitric acid
The mixture of two kinds of substances in oxygen zirconium, zirconium sulfate, zirconium carbonate ammonium, zirconium nitrate and titanium chloride.
The carbonaceous material is the mixed of two kinds of substances in carbon black, expanded graphite, starch, phenolic resin, sucrose and pitch
Close object.
Aluminium oxide-titanium carbonitride complex phase bulletproof ceramic prepared by the present embodiment is after testing：Fracture toughness is 10~11MPa
m1/2；Compressive resistance is 2550~2650MPa；Vickers hardness is 14~15GPa；Bulk density is 3.05~3.1g/cm3；It is average
Aperture is 150~250nm.
Embodiment 11
A kind of aluminium oxide-titanium carbonitride complex phase bulletproof ceramic and preparation method thereof.With the high titanium aluminium alum of 95~99 mass parts
Autochthonal material micro mist and the carbonaceous material of 1~5 mass parts are raw material；The soluble salt of 4~8 mass parts is first dissolved in 7~10 mass
In the water of part, salting liquid is obtained；The raw material and the salting liquid are placed in planetary ball mill again, is uniformly mixed, is mixed
Close material；By the mixture under the conditions of 120~150MPa under mechanical pressing, obtain green compact；Then by the green compact 150~
It is 12~24 hours dry under the conditions of 200 DEG C, 4~8 hours are kept the temperature to get oxidation under the conditions of nitrogen atmosphere and 1550~1650 DEG C
Aluminium-titanium carbonitride complex phase bulletproof ceramic.
The soluble salt is aluminium chloride, aluminum nitrate, magnesium chloride, magnesium nitrate, magnesium sulfate, zirconium chloride, basic zirconium chloride, nitric acid
The mixture of three kinds of substances in oxygen zirconium, zirconium sulfate, zirconium carbonate ammonium, zirconium nitrate and titanium chloride.
The carbonaceous material is the mixed of three kinds of substances in carbon black, expanded graphite, starch, phenolic resin, sucrose and pitch
Close object.
Aluminium oxide-titanium carbonitride complex phase bulletproof ceramic prepared by the present embodiment is after testing：Fracture toughness be 10.5~
12MPa m1/2；Compressive resistance is 2650~2800MPa；Vickers hardness is 13~15GPa；Bulk density is 3.1~3.2g/
cm3；Average pore size is 150~250nm.
Embodiment 12
A kind of aluminium oxide-titanium carbonitride complex phase bulletproof ceramic and preparation method thereof.With the high titanium aluminium alum of 95~99 mass parts
Autochthonal material micro mist and the carbonaceous material of 1~5 mass parts are raw material；The soluble salt of 4~8 mass parts is first dissolved in 7~10 mass
In the water of part, salting liquid is obtained；The raw material and the salting liquid are placed in planetary ball mill again, is uniformly mixed, is mixed
Close material；By the mixture under the conditions of 120~150MPa under mechanical pressing, obtain green compact；Then by the green compact 110~
It is 24~36 hours dry under the conditions of 160 DEG C, 1~5 hour is kept the temperature to get oxidation under the conditions of nitrogen atmosphere and 1650~1750 DEG C
Aluminium-titanium carbonitride complex phase bulletproof ceramic.
The soluble salt is aluminium chloride, aluminum nitrate, magnesium chloride, magnesium nitrate, magnesium sulfate, zirconium chloride, basic zirconium chloride, nitric acid
The mixture of four kinds of substances in oxygen zirconium, zirconium sulfate, zirconium carbonate ammonium, zirconium nitrate and titanium chloride.
The carbonaceous material is the mixed of four kinds of substances in carbon black, expanded graphite, starch, phenolic resin, sucrose and pitch
Close object.
Aluminium oxide-titanium carbonitride complex phase bulletproof ceramic prepared by the present embodiment is after testing：Fracture toughness is 10~11MPa
m1/2；Compressive resistance is 2600~2750MPa；Vickers hardness is 14~15GPa；Bulk density is 3.1~3.15g/cm3；It is average
Aperture is 200~300nm.
Embodiment 13
A kind of aluminium oxide-titanium carbonitride complex phase bulletproof ceramic and preparation method thereof.With the high titanium aluminium alum of 92~96 mass parts
Autochthonal material micro mist and the carbonaceous material of 4~8 mass parts are raw material；The soluble salt of 4~8 mass parts is first dissolved in 7~10 mass
In the water of part, salting liquid is obtained；The raw material and the salting liquid are placed in planetary ball mill again, is uniformly mixed, is mixed
Close material；By the mixture under the conditions of 100~130MPa under mechanical pressing, obtain green compact；Then by the green compact 150~
It is 12~24 hours dry under the conditions of 200 DEG C, 4~8 hours are kept the temperature to get oxidation under the conditions of nitrogen atmosphere and 1550~1650 DEG C
Aluminium-titanium carbonitride complex phase bulletproof ceramic.
The soluble salt is aluminium chloride, aluminum nitrate, magnesium chloride, magnesium nitrate, magnesium sulfate, zirconium chloride, basic zirconium chloride, nitric acid
One kind in oxygen zirconium, zirconium sulfate, zirconium carbonate ammonium, zirconium nitrate and titanium chloride.
The carbonaceous material is one kind in carbon black, expanded graphite, starch, phenolic resin, sucrose and pitch.
Aluminium oxide-titanium carbonitride complex phase bulletproof ceramic prepared by the present embodiment is after testing：Fracture toughness is 11~12MPa
m1/2；Compressive resistance is 2500~2600MPa；Vickers hardness is 12~13GPa；Bulk density is 3.0~3.1g/cm3；It is average
Aperture is 150~250nm.
Embodiment 14
A kind of aluminium oxide-titanium carbonitride complex phase bulletproof ceramic and preparation method thereof.With the high titanium aluminium alum of 92~96 mass parts
Autochthonal material micro mist and the carbonaceous material of 4~8 mass parts are raw material；The soluble salt of 4~8 mass parts is first dissolved in 7~10 mass
In the water of part, salting liquid is obtained；The raw material and the salting liquid are placed in planetary ball mill again, is uniformly mixed, is mixed
Close material；By the mixture under the conditions of 100~130MPa under mechanical pressing, obtain green compact；Then by the green compact 110~
It is 24~36 hours dry under the conditions of 160 DEG C, 1~5 hour is kept the temperature to get oxidation under the conditions of nitrogen atmosphere and 1650~1750 DEG C
Aluminium-titanium carbonitride complex phase bulletproof ceramic.
The soluble salt is aluminium chloride, aluminum nitrate, magnesium chloride, magnesium nitrate, magnesium sulfate, zirconium chloride, basic zirconium chloride, nitric acid
The mixture of two kinds of substances in oxygen zirconium, zirconium sulfate, zirconium carbonate ammonium, zirconium nitrate and titanium chloride.
The carbonaceous material is the mixed of two kinds of substances in carbon black, expanded graphite, starch, phenolic resin, sucrose and pitch
Close object.
Aluminium oxide-titanium carbonitride complex phase bulletproof ceramic prepared by the present embodiment is after testing：Fracture toughness be 10.5~
11MPa m1/2；Compressive resistance is 2500~2600MPa；Vickers hardness is 13~14GPa；Bulk density is 3.0~3.05g/
cm3；Average pore size is 150~250nm.
Embodiment 15
A kind of aluminium oxide-titanium carbonitride complex phase bulletproof ceramic and preparation method thereof.With the high titanium aluminium alum of 92~96 mass parts
Autochthonal material micro mist and the carbonaceous material of 4~8 mass parts are raw material；The soluble salt of 4~8 mass parts is first dissolved in 7~10 mass
In the water of part, salting liquid is obtained；The raw material and the salting liquid are placed in planetary ball mill again, is uniformly mixed, is mixed
Close material；By the mixture under the conditions of 120~150MPa under mechanical pressing, obtain green compact；Then by the green compact 150~
It is 12~24 hours dry under the conditions of 200 DEG C, 4~8 hours are kept the temperature to get oxidation under the conditions of nitrogen atmosphere and 1550~1650 DEG C
Aluminium-titanium carbonitride complex phase bulletproof ceramic.
The soluble salt is aluminium chloride, aluminum nitrate, magnesium chloride, magnesium nitrate, magnesium sulfate, zirconium chloride, basic zirconium chloride, nitric acid
The mixture of three kinds of substances in oxygen zirconium, zirconium sulfate, zirconium carbonate ammonium, zirconium nitrate and titanium chloride.
The carbonaceous material is the mixed of three kinds of substances in carbon black, expanded graphite, starch, phenolic resin, sucrose and pitch
Close object.
Aluminium oxide-titanium carbonitride complex phase bulletproof ceramic prepared by the present embodiment is after testing：Fracture toughness is 11~12MPa
m1/2；Compressive resistance is 2550~2700MPa；Vickers hardness is 12~14GPa；Bulk density is 3.05~3.1g/cm3；It is average
Aperture is 200~300nm.
Embodiment 16
A kind of aluminium oxide-titanium carbonitride complex phase bulletproof ceramic and preparation method thereof.With the high titanium aluminium alum of 92~96 mass parts
Autochthonal material micro mist and the carbonaceous material of 4~8 mass parts are raw material；The soluble salt of 4~8 mass parts is first dissolved in 7~10 mass
In the water of part, salting liquid is obtained；The raw material and the salting liquid are placed in planetary ball mill again, is uniformly mixed, is mixed
Close material；By the mixture under the conditions of 120~150MPa under mechanical pressing, obtain green compact；Then by the green compact 110~
It is 24~36 hours dry under the conditions of 160 DEG C, 1~5 hour is kept the temperature to get oxidation under the conditions of nitrogen atmosphere and 1650~1750 DEG C
Aluminium-titanium carbonitride complex phase bulletproof ceramic.
The soluble salt is aluminium chloride, aluminum nitrate, magnesium chloride, magnesium nitrate, magnesium sulfate, zirconium chloride, basic zirconium chloride, nitric acid
The mixture of four kinds of substances in oxygen zirconium, zirconium sulfate, zirconium carbonate ammonium, zirconium nitrate and titanium chloride.
The carbonaceous material is the mixed of four kinds of substances in carbon black, expanded graphite, starch, phenolic resin, sucrose and pitch
Close object.
Aluminium oxide-titanium carbonitride complex phase bulletproof ceramic prepared by the present embodiment is after testing：Fracture toughness is 11~12MPa
m1/2；Compressive resistance is 2550~2700MPa；Vickers hardness is 13~15GPa；Bulk density is 3.05~3.15g/cm3；It is flat
Equal aperture is 200~300nm.
Present embodiment has following good effect compared with prior art：
(1) present embodiment prepares Al directly using high titanium bauxite raw material as raw material2O3Base complex phase bulletproof ceramic, it is raw
It produces at low cost and simple for process.
(2) present embodiment introduces soluble salt, it is described can salt hydrolyze when being dissolved in the water, hydration can be formed
Cation, hydrated cation exist in the form of the tetramer or dimer, and the bridge formation hydroxyl having can be connected with each other, to former
Position forms the network structure with nanoaperture.During heat treatment, since the tetramer or dimer decompose the nanometer generated
The difference of particle and high titanium bauxite micro mist sintering character so that above-mentioned nanoaperture by quick closure in intra-die, to
Form the transgranular stomata of nano-scale.The presence of the nanocrystalline inner air vent can effectively absorb the energy for reducing crack propagation, and
So that bridging and deflection occur for crackle, the mechanical property of aluminium oxide-titanium carbonitride complex phase bulletproof ceramic is promoted；In addition, stomata
The density of aluminium oxide-titanium carbonitride complex phase bulletproof ceramic can be reduced by introducing.
(3) present embodiment utilizes the TiO in high titanium bauxite raw material2Component passes through CRN method original
Position forms TiCN phases, since TiCN phases have excellent mechanical property, on the one hand, can form time interface, pinning position in material
Mistake effect can hinder crack propagation；It on the other hand, will be in aluminium oxide-carbon due to the difference of TiCN phases and matrix coefficient of thermal expansion
Residual thermal stress is formed inside titanium nitride complex phase bulletproof ceramic so that bridging and deflection occur for crackle, and extensions path extends.Cause
This, can further promote the toughness and intensity of aluminium oxide-titanium carbonitride complex phase bulletproof ceramic.
Based on above-mentioned good effect, present embodiment can realize aluminium oxide-titanium carbonitride complex phase bulletproof ceramic
The good combination of high tenacity, high intensity, high rigidity and low-density.
Aluminium oxide-titanium carbonitride complex phase bulletproof ceramic prepared by present embodiment is after testing：Fracture toughness be 8~
12MPa m1/2；Compressive resistance is 2500~3000MPa；Vickers hardness is 12~18GPa；Bulk density is 3.0~3.3g/
cm3；Average pore size is 100~300nm.
Therefore, present embodiment is at low cost and simple for process, the prepared aluminium oxide-shellproof pottery of titanium carbonitride complex phase
Porcelain has the characteristics that intensity is high, hardness is high, toughness is high, low containing the transgranular stomata of a large amount of nanoscales and bulk density.
Claims (5)
1. a kind of preparation method of aluminium oxide-titanium carbonitride complex phase bulletproof ceramic, it is characterised in that with the height of 92~99 mass parts
Titanium bauxite raw material micro mist and the carbonaceous material of 1~8 mass parts are raw material；The soluble salt of 0.1~8 mass parts is first dissolved in 4
In the water of~10 mass parts, salting liquid is obtained；The raw material and the salting liquid are placed in planetary ball mill again, mixing is equal
It is even, obtain mixture；By the mixture under the conditions of 100~150MPa under mechanical pressing, obtain green compact；Then by the life
Base is 12~36 hours dry under the conditions of 110~200 DEG C, and it is small that 1~8 is kept the temperature under the conditions of nitrogen atmosphere and 1550~1750 DEG C
When to get aluminium oxide-titanium carbonitride complex phase bulletproof ceramic.
2. the preparation method of aluminium oxide according to claim 1-titanium carbonitride complex phase bulletproof ceramic, it is characterised in that described
Soluble salt be aluminium chloride, aluminum nitrate, magnesium chloride, magnesium nitrate, magnesium sulfate, zirconium chloride, basic zirconium chloride, zirconyl nitrate, zirconium sulfate,
1~4 kind in zirconium carbonate ammonium, zirconium nitrate and titanium chloride.
3. the preparation method of aluminium oxide according to claim 1-titanium carbonitride complex phase bulletproof ceramic, it is characterised in that described
The Al of high titanium bauxite raw material micro mist2O3Content>80wt%, TiO2Content>2wt%；The grain size D of high titanium bauxite raw material micro mist50
It is 1~8 μm.
4. the preparation method of aluminium oxide according to claim 1-titanium carbonitride complex phase bulletproof ceramic, it is characterised in that described
Carbonaceous material is 1~4 kind in carbon black, expanded graphite, starch, phenolic resin, sucrose and pitch.
5. a kind of aluminium oxide-titanium carbonitride complex phase bulletproof ceramic, it is characterised in that the aluminium oxide-titanium carbonitride complex phase is shellproof
Ceramics are the preparation methods of aluminium oxide-titanium carbonitride complex phase bulletproof ceramic according to any one of claims 1~4
Prepared aluminium oxide-titanium carbonitride complex phase bulletproof ceramic.
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