CN101787476B - (TiCxNy-TiB2)/Ni ceramic-metal composite material and preparation method thereof - Google Patents
(TiCxNy-TiB2)/Ni ceramic-metal composite material and preparation method thereof Download PDFInfo
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- CN101787476B CN101787476B CN2010100308279A CN201010030827A CN101787476B CN 101787476 B CN101787476 B CN 101787476B CN 2010100308279 A CN2010100308279 A CN 2010100308279A CN 201010030827 A CN201010030827 A CN 201010030827A CN 101787476 B CN101787476 B CN 101787476B
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Abstract
The invention relates to a (TiCxNy-TiB2)/Ni ceramic-metal composite material which is prepared from Ni, Ti, B4C and BN powders by using combustion synthesis and auxiliary pressure, has high hardness and abrasion resistance and contains 37-17% of TiCxNy, 53-23% of TiB2 and 10-60% of Ni and a preparation method thereof. The invention aims to combine the combustion reaction among Ni, Ti, B4C and BN powders with hot-pressing to synthetize the (TiCxNy-TiB2)/Ni ceramic-metal composite material in one-step, thus overcoming the defect of high facility and preparation process requests of the traditional powder metallurgy method; and as Ni, TiCxNy and TiB2 all have good wettability, using Ni as binder can effectively improve the consistency of the TiCxNy-TiB2 ceramic-based composite material and the high temperature mechanical property of material.
Description
Technical field
The present invention relates to a kind of (TiC with high rigidity and high-wearing feature
xN
y-TiB
2)/Ni ceramic-metal composite material and preparation method thereof.
Background technology
Along with the development of industries such as China's space flight, aviation, automobile and machinery, the requirement that undermines characteristic such as corrosion-resistant for material high temperature resistant, wear-resisting is more and more urgent.Single-phase or multiphase ceramic is effectively combined with bond high temperature resistant, the wear-resisting corrosion resistance that undermines of heat conduction that synthetic ceramic-metal composite material can be good with metal, conduction and good plasticity and pottery of Metal Phase, satisfied industrial needs.Such as: the high rigidity of generally acknowledging both at home and abroad at present, the drill bit that high abrasion WC-Co carbide alloy is widely used in exploration drilling, machine-building etc.; TiC
xN
yBased ceramic metal is used for making cutting tool etc.; The TiC based ceramic metal be used for to be made jet blade etc. and Al
2O
3-Cr cermet is used for making guided missile nozzle insert etc.Although the WC-Co carbide alloy has good physical characteristic, its high fragility has limited its application.TiC
xN
yPottery is owing to its advantage that combines TiC and these two kinds of potteries of TiN receives much concern in recent years, especially aspect the preparation cermet material.In order further to improve TiC
xN
yThe mechanical property of ceramic based material and range of application, people can be to TiC usually
xN
yAdd second-phase pottery, such as WC and TaC etc. in the ceramic based material.In recent years, also there are some scholars attempting to TiC
xN
yAdd TiB in the ceramic based material
2Improve the performance of material.Traditionally, synthetic TiC
xN
y-TiB
2The method of composite is two step method, namely obtains at first respectively TiC
xN
yAnd TiB
2Ceramic powders, the method according to powder metallurgy is prepared into TiC then
xN
y-TiB
2Ceramic matric composite.Such preparation method need to finish being higher than under 1700 degrees centigrade high temperature and the gas shield usually.In addition, before carrying out sintering, earlier the powder that mixes is cold-pressed into the fine and close pressed compact greater than 98% solid density, therefore, usually need under the pressure of about 300MPa, suppresses.The realization of these technologies is very high for the requirement of equipment, has increased to a great extent TiC
xN
y-TiB
2The preparation cost of ceramic matric composite, and material is under the hot environment for a long time, and the ceramic phase grain size also can be grown up gradually, thereby affects the performance of material.In addition, there is the people preparing TiC with two step method
xN
y-TiB
2During ceramic matric composite, the metal powder mixture that adds simultaneously Fe, Ni, Cr and Co for the densified meeting of material is as binding agent, and has no independent use Ni as binding agent.According to relevant report, metal Ni not only self has higher hardness, fusing point and corrosion resistance preferably, when it is in liquid state and TiC
xN
yAnd TiB
2Preferably wetability is all arranged.Adopt Ni as binding agent, can effectively improve the density of material and the mechanical behavior under high temperature of material.Therefore, it is simple to be badly in need of a kind of device therefor, and method that can one-step synthesis prepare have high rigidity, the component TiC of high-wearing feature and relative higher toughness
xN
y, TiB
2With Ni adjustable (TiC on a large scale by weight percentage
xN
y-TiB
2)/Ni ceramic-metal composite material.
Summary of the invention
The objective of the invention is to Ni Ti, BN and B
4C is raw material, and preparing a kind of compositions in weight percentage by the synthetic method of being combined with the pressure auxiliary phase of burning is TiC
xN
y37～17, TiB
253～23, Ni 10～60 has the (TiC of high rigidity and high-wearing feature
xN
y-TiB
2)/Ni ceramic-metal composite material and preparation method thereof.
The present invention utilizes Ni, Ti, BN and B
4Exothermic reaction between the C cooperates hot extrusion technique one-step synthesis (TiC
xN
y-TiB
2)/Ni ceramic-metal composite material, and obtain the composite of different quality mark ceramic phase by the mass percent that changes Ni in the reactant, to reach the demand of different application.The present invention is characterized in that may further comprise the steps:
Step 1, batching: get powder size and be 40～45 microns Ni powder, 38～40 microns Ti powder, 3.5 microns B
4The BN powder batching of C powder and 3.0 microns.Wherein, Ti, B
4The ratio of C and BN is Ti: B in molar ratio
4C: BN=4.5: 1: 1, Ni content weight percent was 10～60.
Step 2, batch mixing: the powder for preparing was mixed 8 hours in the roller milling machine, mixed powder hand in mortar is mixed making powder mixes even in 15 minutes subsequently.
Step 3, compression moulding: get suitable mixed powder and put into mould, at room temperature to be pressed into diameter be 22 millimeters, highly be the cylindrical reaction prefabricated block of 30-50 millimeter, and prefabricated section density is 70% of mixed powder theoretical density.
Step 4, (TiC
xN
y-TiB
2The preparation of)/Ni ceramic-metal composite material: prefabricated section is put into graphite jig, put into a high strength graphite depression bar at the prefabricated section upper-end part of driving then.The graphite jig that prefabricated section is housed is put into a combustion reactions stove that has the vacuum/atmosphere protection of hydraulic efficiency plant prefabricated section is heated to 950～980 degrees centigrade, cause combustion reactions with 40 temperature rise rates of spending per minutes.In case combustion reaction takes place, immediately prefabricated section is applied the axial compressive force of 3～5MPa, pressurize cooled to room temperature with the furnace after 30 seconds, i.e. synthetic (TiC of the present invention
xN
y-TiB
2)/Ni ceramic-metal composite material.
Description of drawings
Fig. 1 is embodiment 1 composition (TiC
xN
y-TiB
2The microstructural SEM of)/Ni ceramic-metal composite material (SEM) photo;
Fig. 2 is embodiment 1 composition (TiC
xN
y-TiB
2The X-ray analysis of)/Ni ceramic-metal composite material;
Fig. 3 is embodiment 3 composition (TiC
xN
y-TiB
2The microstructural SEM of)/Ni ceramic-metal composite material (SEM) photo;
Fig. 4 is embodiment 3 composition (TiC
xN
y-TiB
2The X-ray analysis of)/Ni ceramic-metal composite material;
Fig. 5 is embodiment 4 composition (TiC
xN
y-TiB
2The microstructural SEM of)/Ni ceramic-metal composite material (SEM) photo;
Fig. 6 is embodiment 4 composition (TiC
xN
y-TiB
2The X-ray analysis of)/Ni ceramic-metal composite material;
Fig. 7 is embodiment 5 composition (TiC
xN
y-TiB
2The microstructural SEM of)/Ni ceramic-metal composite material (SEM) photo;
Fig. 8 is embodiment 5 composition (TiC
xN
y-TiB
2The X-ray analysis of)/Ni ceramic-metal composite material.
Embodiment
Below the invention will be further described by the accompanying drawing illustrated embodiment.
Embodiment 1
Consult Fig. 1, Fig. 2, producing by weight percentage, component consists of TiC
xN
y37, TiB
253, (the TiC of Ni10
xN
y-TiB
2)/Ni ceramic-metal composite material.
Get powder size and be 40～45 microns Ni powder, 38～40 microns Ti powder, 3.5 microns B
4The BN powder batching of C powder and 3.0 microns.Wherein, Ti, B
4The ratio of C and BN is Ti: B in molar ratio
4C: BN=4.5: 1: 1, Ni content weight percent was 10.The powder of preparation was mixed 8 hours on the roller milling machine, mixed powder hand in mortar is mixed making powder mixes even in 15 minutes subsequently.The powder compression that mixes is become diameter be 22 millimeters, highly be 30 millimeters cylindrical reaction prefabricated block that prefabricated section density is 70% of mixed powder theoretical density.Prefabricated section is put into graphite jig, put into a high strength graphite bar at position, prefabricated section upper end then.The graphite jig that prefabricated section is housed is put into a vacuum/atmosphere protection combustion reactions stove that has hydraulic efficiency plant prefabricated section is heated to 950～980 degrees centigrade, cause combustion reactions with 40 temperature rise rates of spending per minutes.In case reaction takes place, immediately prefabricated section is applied the axial compressive force of 3～5MPa, pressurize cooled to room temperature with the furnace after 30 seconds, i.e. synthetic (TiC of the present invention
xN
y-TiB
2)/Ni ceramic-metal composite material.(TiC at this composition
xN
y-TiB
2Produce sample in the)/Ni ceramic-metal composite material, carry out hardness test at HR-150 type Rockwell apparatus, carry out wear test at the ML-100 abrasion tester, and be 78 with Rockwell hardness, component forms and compares for the carbide alloy of WC92, Co8 (hereinafter to be referred as the WC-Co carbide alloy) by weight percentage.Test result shows, this composition (TiC
xN
y-TiB
2)/Ni ceramic-metal composites Rockwell hardness is 68 ± 1.Be on 13 microns the SiC sand paper at grit size, under the 15N load, when the wearing and tearing distance is 40 meters, this composition (TiC
xN
y-TiB
2The wearability of)/Ni ceramic-metal composites is 1/3rd of WC-Co carbide alloy.
Embodiment 2
Producing by weight percentage, component consists of TiC
xN
y33, TiB
247, (the TiC of Ni20
xN
y-TiB
2)/Ni ceramic-metal composite material.
Get powder size and be 40～45 microns Ni powder, 38～40 microns Ti powder, 3.5 microns B
4The BN powder batching of C powder and 3.0 microns.Wherein, Ti, B
4The ratio of C and BN is Ti: B in molar ratio
4C: BN=4.5: 1: 1, Ni content weight percent was 20.Its preparation method is with embodiment 1.Its Rockwell hardness is 68.9 ± 1.Be on 13 microns the SiC sand paper at grit size, under the 15N load, when the wearing and tearing distance is 40 meters, this composition (TiC
xN
y-TiB
2The wearability of)/Ni ceramic-metal composites is 1/2nd of WC-Co carbide alloy.
Embodiment 3
Consult Fig. 3, Fig. 4, producing by weight percentage, component consists of TiC
xN
y29, TiB
241, (the TiC of Ni30
xN
y-TiB
2)/Ni ceramic-metal composite material.
Get powder size and be 40～45 microns Ni powder, 38～40 microns Ti powder, 3.5 microns B
4The BN powder batching of C powder and 3.0 microns.Wherein, Ti, B
4The ratio of C and BN is Ti: B in molar ratio
4C: BN=4.5: 1: 1, Ni content weight percent was 30.Its preparation method is with embodiment 1.Its Rockwell hardness is 70 ± 1.Be on 13 microns the SiC sand paper at grit size, under the 15N load, when the wearing and tearing distance is 40 meters, this composition (TiC
xN
y-TiB
2The wearability of)/Ni ceramic-metal composites is suitable with the WC-Co8 carbide alloy.
Embodiment 4
Consult Fig. 5, Fig. 6, producing by weight percentage, component consists of TiC
xN
y25, TiB
235, (the TiC of Ni40
xN
y-TiB
2)/Ni ceramic-metal composite material.
Get powder size and be 40～45 microns Ni powder, 38～40 microns Ti powder, 3.5 microns B
4The BN powder batching of C powder and 3.0 microns.Wherein, Ti, B
4The ratio of C and BN is Ti: B in molar ratio
4C: BN=4.5: 1: 1, Ni content weight percent was 40.Its preparation method is with embodiment 1.Its Rockwell hardness is 68 ± 1.Be on 13 microns the SiC sand paper at grit size, under the 15N load, when the wearing and tearing distance is 40 meters, this composition (TiC
xN
y-TiB
2The wearability of)/Ni ceramic-metal composites is 1/2nd of WC-Co8 carbide alloy.
Embodiment 5
Consult Fig. 7, Fig. 8, producing by weight percentage, component consists of TiC
xN
y21, TiB
229, (the TiC of Ni50
xN
y-TiB
2)/Ni ceramic-metal composite material.
Get powder size and be 40～45 microns Ni powder, 38～40 microns Ti powder, 3.5 microns B
4The BN powder batching of C powder and 3.0 microns.Wherein, Ti, B
4The ratio of C and BN is Ti: B in molar ratio
4C: BN=4.5: 1: 1, Ni content weight percent was 50.Its preparation method is with embodiment 1.Its Rockwell hardness is 66 ± 1.Be on 13 microns the SiC sand paper at grit size, under the 15N load, when the wearing and tearing distance is 40 meters, this composition (TiC
xN
y-TiB
2The wearability of)/Ni ceramic-metal composites is 3/4ths of WC-Co8 carbide alloy.
Claims (2)
1. (TiC
xN
y-TiB
2)/Ni ceramic-metal composite material is characterized in that utilizing Ni, Ti, B
4Combustion reaction between C and the BN powder is in conjunction with the synthetic (TiC with different Ni content of hot extrusion technique
xN
y-TiB
2)/Ni ceramic-metal composite material, its compositions in weight percentage are TiC
xN
y37～17, TiB
253～23, Ni 10～60, Ti, B
4The ratio of C and BN is Ti: B in molar ratio
4C: BN=4.5: 1: 1.
2. one kind is used for the described (TiC of claim 1
xN
y-TiB
2The preparation method of)/Ni ceramic-metal composite material is characterized in that adopting following processing step:
Step 1, batching: get powder size and be 40～45 microns Ni powder, 38～40 microns Ti powder, 3.5 microns B
4The BN powder batching of C powder and 3.0 microns, wherein, Ti, B
4The ratio of C and BN is Ti: B in molar ratio
4C: BN=4.5: 1: 1, Ni content weight percent was 10～60;
Step 2, batch mixing: the powder for preparing was mixed 8 hours in the roller milling machine, mixed powder hand in mortar is mixed making powder mixes even in 15 minutes subsequently;
Step 3, compression moulding: get suitable mixed powder and put into mould, at room temperature to be pressed into diameter be 22 millimeters, highly be the cylindrical reaction prefabricated block of 30-50 millimeter, and prefabricated section density is 70% of mixed powder theoretical density;
Step 4, (TiC
xN
y-TiB
2The preparation of)/Ni ceramic-metal composite material: prefabricated section is put into graphite jig, put into a high strength graphite depression bar at the prefabricated section upper-end part of driving then; The graphite jig that prefabricated section is housed is put into one with the heating rates of 40 degree per minutes prefabricated section is heated to 950～980 degrees centigrade with the combustion reaction stove of the vacuum/atmosphere protection of hydraulic means, cause combustion reaction; In case combustion reaction takes place, immediately prefabricated section is applied the axial compressive force of 3～5MPa, pressurize cooled to room temperature with the furnace after 30 seconds, (TiC
xN
y-TiB
2)/Ni ceramic-metal composite material is synthetic to be finished.
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|---|---|---|---|
| CN2010100308279A CN101787476B (en) | 2010-01-18 | 2010-01-18 | (TiCxNy-TiB2)/Ni ceramic-metal composite material and preparation method thereof |
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|---|---|---|---|
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|---|---|
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| CN101787476B true CN101787476B (en) | 2011-04-13 |
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| CN102432297B (en) * | 2011-09-23 | 2013-06-19 | 吉林大学 | Boron carbon titanium nitride (Ti(B, C, N)) ceramic powder material and preparation method thereof |
| CN107164679B (en) * | 2017-07-10 | 2018-10-16 | 台州学院 | A kind of Ultra-fine Grained high performance Ti (C, N)-TiB2- WC composite cermets cutter and preparation method |
| CN109055860A (en) * | 2018-09-07 | 2018-12-21 | 吉林大学 | One specific admixture scale TiCN and TiB2Particle Strengthening and Toughening low-alloy steel and preparation method thereof |
| CN109317644B (en) * | 2018-10-17 | 2020-04-28 | 西安交通大学 | Preparation method of porous reticular ceramic reinforced steel-based composite lining plate |
| CN112430761A (en) * | 2020-10-16 | 2021-03-02 | 湘潭大学 | TiB2/Ti(C,N)/Al2O3Preparation method of ceramic cutter material |
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