CN108530080A - A kind of high temperature ceramic material and preparation method thereof - Google Patents
A kind of high temperature ceramic material and preparation method thereof Download PDFInfo
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- CN108530080A CN108530080A CN201810652119.5A CN201810652119A CN108530080A CN 108530080 A CN108530080 A CN 108530080A CN 201810652119 A CN201810652119 A CN 201810652119A CN 108530080 A CN108530080 A CN 108530080A
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- 229910010293 ceramic material Inorganic materials 0.000 title claims abstract description 23
- 238000002360 preparation method Methods 0.000 title claims abstract description 17
- DTGKSKDOIYIVQL-WEDXCCLWSA-N (+)-borneol Chemical compound C1C[C@@]2(C)[C@@H](O)C[C@@H]1C2(C)C DTGKSKDOIYIVQL-WEDXCCLWSA-N 0.000 claims abstract description 38
- REPVLJRCJUVQFA-UHFFFAOYSA-N (-)-isopinocampheol Natural products C1C(O)C(C)C2C(C)(C)C1C2 REPVLJRCJUVQFA-UHFFFAOYSA-N 0.000 claims abstract description 38
- 229940116229 borneol Drugs 0.000 claims abstract description 38
- CKDOCTFBFTVPSN-UHFFFAOYSA-N borneol Natural products C1CC2(C)C(C)CC1C2(C)C CKDOCTFBFTVPSN-UHFFFAOYSA-N 0.000 claims abstract description 38
- DTGKSKDOIYIVQL-UHFFFAOYSA-N dl-isoborneol Natural products C1CC2(C)C(O)CC1C2(C)C DTGKSKDOIYIVQL-UHFFFAOYSA-N 0.000 claims abstract description 38
- WYURNTSHIVDZCO-UHFFFAOYSA-N Tetrahydrofuran Chemical compound C1CCOC1 WYURNTSHIVDZCO-UHFFFAOYSA-N 0.000 claims abstract description 26
- 229910052746 lanthanum Inorganic materials 0.000 claims abstract description 18
- FZLIPJUXYLNCLC-UHFFFAOYSA-N lanthanum atom Chemical compound [La] FZLIPJUXYLNCLC-UHFFFAOYSA-N 0.000 claims abstract description 18
- 229910052581 Si3N4 Inorganic materials 0.000 claims abstract description 13
- SRSXLGNVWSONIS-UHFFFAOYSA-N benzenesulfonic acid Chemical compound OS(=O)(=O)C1=CC=CC=C1 SRSXLGNVWSONIS-UHFFFAOYSA-N 0.000 claims abstract description 13
- 229940092714 benzenesulfonic acid Drugs 0.000 claims abstract description 13
- 239000002994 raw material Substances 0.000 claims abstract description 13
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 claims abstract description 13
- 229910000033 sodium borohydride Inorganic materials 0.000 claims abstract description 13
- 239000012279 sodium borohydride Substances 0.000 claims abstract description 13
- YLQBMQCUIZJEEH-UHFFFAOYSA-N tetrahydrofuran Natural products C=1C=COC=1 YLQBMQCUIZJEEH-UHFFFAOYSA-N 0.000 claims abstract description 13
- MTPVUVINMAGMJL-UHFFFAOYSA-N trimethyl(1,1,2,2,2-pentafluoroethyl)silane Chemical compound C[Si](C)(C)C(F)(F)C(F)(F)F MTPVUVINMAGMJL-UHFFFAOYSA-N 0.000 claims abstract description 13
- RUDFQVOCFDJEEF-UHFFFAOYSA-N yttrium(III) oxide Inorganic materials [O-2].[O-2].[O-2].[Y+3].[Y+3] RUDFQVOCFDJEEF-UHFFFAOYSA-N 0.000 claims abstract description 13
- 239000000203 mixture Substances 0.000 claims description 41
- 239000000047 product Substances 0.000 claims description 15
- 238000005245 sintering Methods 0.000 claims description 14
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 12
- 239000003814 drug Substances 0.000 claims description 12
- 238000000227 grinding Methods 0.000 claims description 12
- 239000003921 oil Substances 0.000 claims description 12
- 235000019198 oils Nutrition 0.000 claims description 12
- 239000011265 semifinished product Substances 0.000 claims description 12
- 238000010792 warming Methods 0.000 claims description 8
- 239000007788 liquid Substances 0.000 claims description 7
- 238000000498 ball milling Methods 0.000 claims description 6
- 238000001816 cooling Methods 0.000 claims description 6
- 230000003292 diminished effect Effects 0.000 claims description 6
- 239000006185 dispersion Substances 0.000 claims description 6
- 239000011261 inert gas Substances 0.000 claims description 6
- 238000000926 separation method Methods 0.000 claims description 6
- 238000002156 mixing Methods 0.000 claims description 5
- 235000015112 vegetable and seed oil Nutrition 0.000 claims description 5
- 239000008158 vegetable oil Substances 0.000 claims description 5
- ZCYVEMRRCGMTRW-UHFFFAOYSA-N 7553-56-2 Chemical compound [I] ZCYVEMRRCGMTRW-UHFFFAOYSA-N 0.000 claims description 4
- 229910052740 iodine Inorganic materials 0.000 claims description 4
- 239000011630 iodine Substances 0.000 claims description 4
- 235000019484 Rapeseed oil Nutrition 0.000 claims description 3
- 235000012424 soybean oil Nutrition 0.000 claims description 3
- 239000003549 soybean oil Substances 0.000 claims description 3
- 235000019774 Rice Bran oil Nutrition 0.000 claims 1
- 235000013339 cereals Nutrition 0.000 claims 1
- 239000010977 jade Substances 0.000 claims 1
- 239000008165 rice bran oil Substances 0.000 claims 1
- 238000000034 method Methods 0.000 abstract description 3
- 239000000919 ceramic Substances 0.000 description 7
- 230000000052 comparative effect Effects 0.000 description 4
- 239000000284 extract Substances 0.000 description 4
- AFCARXCZXQIEQB-UHFFFAOYSA-N N-[3-oxo-3-(2,4,6,7-tetrahydrotriazolo[4,5-c]pyridin-5-yl)propyl]-2-[[3-(trifluoromethoxy)phenyl]methylamino]pyrimidine-5-carboxamide Chemical compound O=C(CCNC(=O)C=1C=NC(=NC=1)NCC1=CC(=CC=C1)OC(F)(F)F)N1CC2=C(CC1)NN=N2 AFCARXCZXQIEQB-UHFFFAOYSA-N 0.000 description 3
- 238000001035 drying Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000005452 bending Methods 0.000 description 2
- 235000005687 corn oil Nutrition 0.000 description 2
- 239000002285 corn oil Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000002253 acid Substances 0.000 description 1
- 150000007513 acids Chemical class 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000004927 clay Substances 0.000 description 1
- 229940079593 drug Drugs 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 229910052573 porcelain Inorganic materials 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 239000003981 vehicle Substances 0.000 description 1
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- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/515—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics
- C04B35/56—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics based on carbides or oxycarbides
- C04B35/5607—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics based on carbides or oxycarbides based on refractory metal carbides
- C04B35/5611—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics based on carbides or oxycarbides based on refractory metal carbides based on titanium carbides
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- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
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- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
- C04B2235/30—Constituents and secondary phases not being of a fibrous nature
- C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
- C04B2235/3224—Rare earth oxide or oxide forming salts thereof, e.g. scandium oxide
- C04B2235/3225—Yttrium oxide or oxide-forming salts thereof
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- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
- C04B2235/30—Constituents and secondary phases not being of a fibrous nature
- C04B2235/34—Non-metal oxides, non-metal mixed oxides, or salts thereof that form the non-metal oxides upon heating, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
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- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
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- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
- C04B2235/30—Constituents and secondary phases not being of a fibrous nature
- C04B2235/38—Non-oxide ceramic constituents or additives
- C04B2235/3804—Borides
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- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
- C04B2235/30—Constituents and secondary phases not being of a fibrous nature
- C04B2235/38—Non-oxide ceramic constituents or additives
- C04B2235/3852—Nitrides, e.g. oxynitrides, carbonitrides, oxycarbonitrides, lithium nitride, magnesium nitride
- C04B2235/3873—Silicon nitrides, e.g. silicon carbonitride, silicon oxynitride
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- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
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Abstract
The invention discloses a kind of high temperature ceramic materials and preparation method thereof, include the raw material of following parts by weight：5.5 7.8 parts of 4.2 6.5 parts of yttria, 18.4 20.6 parts of titanium carbide, 15.4 18.7 parts of tetrahydrofuran, 14.5 18.9 parts of micron order lanthanum hexaboride, 5 8.2 parts of benzene sulfonic acid, 1.6 3.4 parts of Iodophor, 6 10 parts of borneol, 12.5 17.6 parts of sodium borohydride and silicon nitride.Raw material sources of the present invention are extensive, by the way that different raw materials is used different preparation processes, different products is mixed using different technique, the finished product of preparation still has good mechanical property under 1750 degrees Celsius, the use demand of people can be met, prospect of the application is wide.
Description
Technical field
The present invention relates to ceramic field, specifically a kind of high temperature ceramic material.
Background technology
Ceramics have long history in China, are nowadays widely used in worldwide, and ceramics are to use clay and porcelain
Both native clays of different nature are raw material, by implements made of the technological processes such as dispensing, molding, drying, roasting, ceramics
Development history be Chinese civilization history an important component part, China is human society one of as four major acids ancient country
Progress and development be made that remarkable contribution, wherein the invention and development of ceramics have more unique meaning, on Chinese history
Each Chao Gedai has different artistic styles and different technical characteristics.
Ceramics are applied not only to our daily life, and ceramics also have application in high-new hard-core technology.With science and technology
Rapid development, the advanced weapons such as aerospace flight vehicle, guided missile and high temperature punching engine with the characteristics of hypersonic dress
The standby a piece of new highland for becoming various countries' scientific contest contention, surface and the internal ultra-high temperature generated are to superhigh temperature resistant when running
Material proposes active demand, and heat safe ceramic material has wide prospect of the application.
Invention content
The purpose of the present invention is to provide a kind of high temperature ceramic materials, to solve mentioned above in the background art ask
Topic.
To achieve the above object, the present invention provides the following technical solutions：
A kind of high temperature ceramic material includes the raw material of following parts by weight：4.2-6.5 parts of yttria, titanium carbide
18.4-20.6 parts, 15.4-18.7 parts of tetrahydrofuran, 14.5-18.9 parts of micron order lanthanum hexaboride, 5-8.2 parts of benzene sulfonic acid, Iodophor
5.5-7.8 parts of 1.6-3.4 parts, 6-10 parts of borneol, 12.5-17.6 parts of sodium borohydride and silicon nitride.
As a further solution of the present invention：The grain size of micron order lanthanum hexaboride is 28-57um.
As a further solution of the present invention：The mass fraction of iodine is 0.85-1.94% in Iodophor.
The preparation method of the high temperature ceramic material, is as follows：
Borneol is added frying 10-15 seconds in 180-210 degrees Celsius of vegetable oil, filters and be separated by solid-liquid separation by step 1,
Medicine oil and fried rear borneol are obtained, fried rear borneol is crushed to 50-60 mesh and is put into ethanol solution and is extracted, borneol extraction is obtained
Liquid；
Yttria, titanium carbide, sodium borohydride and silicon nitride are calcined under 1340-1580 degrees Celsius, are mixed by step 2
Merge and carry out ball mill grinding to 320-380 mesh, then medicine oil and ball milling are added thereto, then in 7200-8600 high
It is handled 50-85 minutes in this magnetic field, obtains the first mixture；
Micron order lanthanum hexaboride is added in tetrahydrofuran and mechanical dispersion is uniform, obtains the second mixture by step 3；
Iodophor is added in borneol extracting solution and is stirred evenly with the rotating speed of 90-135rpm, it is mixed to obtain third by step 4
Close object；
Step 5, will the first mixture, third mixture and benzene sulfonic acid be added reaction kettle in, vacuumized in reaction kettle and
It is filled with inert gas, is kept for 8-11 hours under 190-245 degrees Celsius, is filtered under diminished pressure, washs, is dried in vacuo, it is mixed to obtain the 4th
Close object；
Second mixture and the 4th mixture are mixed and wet ball grinding are uniform, then at 60-82 degrees Celsius by step 6
Lower drying, obtains semi-finished product；
Semi-finished product are added in sintering furnace step 7, and sintering furnace is with the speed of 10-15 degrees celsius/minutes from room temperature
It to 540-610 degrees Celsius and is kept for 3-5 hours, then with the speed of 15-20 degrees celsius/minutes to be warming up to 1480-1670 Celsius
It spends and is kept for 8-12 hours, be then naturally cooling to 820-860 degrees Celsius and kept for 4.5-6 hours, naturally cool to room
Temperature obtains finished product.
As a further solution of the present invention：Vegetable oil includes any one in corn oil, soybean oil and rapeseed oil.
As a further solution of the present invention：The pressure of sintering furnace is 420-535Pa.
As a further solution of the present invention：The speed of mechanical dispersion is 2400-2700rpm.
Compared with prior art, the beneficial effects of the invention are as follows：Raw material sources of the present invention are extensive, by by different raw materials
Using different preparation processes, different products is mixed using different technique, the finished product of preparation under 1750 degrees Celsius still
So there is good mechanical property, the use demand of people can be met, prospect of the application is wide.
Specific implementation mode
The technical solution of this patent is described in more detail With reference to embodiment.
Embodiment 1
A kind of high temperature ceramic material includes the raw material of following parts by weight：4.2 parts of yttria, 18.4 parts of titanium carbide,
15.4 parts of tetrahydrofuran, 14.5 parts of micron order lanthanum hexaboride, 5 parts of benzene sulfonic acid, 1.6 parts of Iodophor, 6 parts of borneol, sodium borohydride 12.5
5.5 parts of part and silicon nitride.The grain size of micron order lanthanum hexaboride is 35um.
The preparation method of the high temperature ceramic material, is as follows：
Borneol is added frying 12 seconds in 185 degrees Celsius of corn oil, filters and be separated by solid-liquid separation, obtain medicine by step 1
Oil and fried rear borneol, borneol, which is crushed to 50 mesh and is put into ethanol solution, after frying extracts, and obtains borneol extracting solution；
Yttria, titanium carbide, sodium borohydride and silicon nitride are calcined under 1430 degrees Celsius, are mixed simultaneously by step 2
And ball mill grinding is carried out to 350 mesh, then medicine oil and ball milling are added thereto, then handled in the magnetic field of 7860 Gausses
58 minutes, obtain the first mixture；
Micron order lanthanum hexaboride is added in tetrahydrofuran and mechanical dispersion is uniform, obtains the second mixture by step 3；
Iodophor is added in borneol extracting solution and is stirred evenly with the rotating speed of 120rpm, obtains third mixing by step 4
Object；
Step 5, will the first mixture, third mixture and benzene sulfonic acid be added reaction kettle in, vacuumized in reaction kettle and
It is filled with inert gas, is kept for 10 hours under 195 degrees Celsius, is filtered under diminished pressure, washs, is dried in vacuo, obtain the 4th mixture；
Second mixture and the 4th mixture are mixed and wet ball grinding are uniform, then under 68 degrees Celsius by step 6
It is dry, obtain semi-finished product；
Step 7, by semi-finished product be added sintering furnace in, sintering furnace with the speed of 12 degrees celsius/minutes from room temperature to
560 degrees Celsius and keep 3 hours, then with the speed of 18 degrees celsius/minutes be warming up to 1525 degrees Celsius and keep 10 hours,
Then 840 degrees Celsius are naturally cooling to and is kept for 5 hours, cooled to room temperature obtains finished product.
Embodiment 2
A kind of high temperature ceramic material includes the raw material of following parts by weight：4.9 parts of yttria, 19.1 parts of titanium carbide,
16.6 parts of tetrahydrofuran, 17.3 parts of micron order lanthanum hexaboride, 6.8 parts of benzene sulfonic acid, 2.2 parts of Iodophor, 7.5 parts of borneol, sodium borohydride
15.4 parts and 6.4 parts of silicon nitride.The mass fraction of iodine is 0.85-1.58% in Iodophor.
The preparation method of the high temperature ceramic material, is as follows：
Borneol is added frying 14 seconds in 204 degrees Celsius of soybean oil, filters and be separated by solid-liquid separation, obtain medicine by step 1
Oil and fried rear borneol, borneol, which is crushed to 60 mesh and is put into ethanol solution, after frying extracts, and obtains borneol extracting solution；
Yttria, titanium carbide, sodium borohydride and silicon nitride are calcined under 1470 degrees Celsius, are mixed simultaneously by step 2
And ball mill grinding is carried out to 360 mesh, then medicine oil and ball milling are added thereto, then handled in the magnetic field of 8150 Gausses
68 minutes, obtain the first mixture；
Micron order lanthanum hexaboride is added in tetrahydrofuran and mechanical dispersion is uniform, obtains the second mixture by step 3；
Iodophor is added in borneol extracting solution and is stirred evenly with the rotating speed of 105rpm, obtains third mixing by step 4
Object；
Step 5, will the first mixture, third mixture and benzene sulfonic acid be added reaction kettle in, vacuumized in reaction kettle and
It is filled with inert gas, is kept for 10 hours under 220 degrees Celsius, is filtered under diminished pressure, washs, is dried in vacuo, obtain the 4th mixture；
Second mixture and the 4th mixture are mixed and wet ball grinding are uniform, then under 76 degrees Celsius by step 6
It is dry, obtain semi-finished product；
Step 7 semi-finished product is added in the sintering furnace of 480Pa, and sintering furnace is with the speed of 10 degrees celsius/minutes from room temperature
It is warming up to 585 degrees Celsius and is kept for 4.2 hours, then be warming up to 1580 degrees Celsius with the speed of 16 degrees celsius/minutes and protect
It holds 10 hours, be then naturally cooling to 845 degrees Celsius and kept for 5 hours, cooled to room temperature obtains finished product.
Embodiment 3
A kind of high temperature ceramic material includes the raw material of following parts by weight：6.3 parts of yttria, 19.8 parts of titanium carbide,
18.2 parts of tetrahydrofuran, 18.2 parts of micron order lanthanum hexaboride, 7.6 parts of benzene sulfonic acid, 3.1 parts of Iodophor, 9.5 parts of borneol, sodium borohydride
17.3 parts and 7.4 parts of silicon nitride.The grain size of micron order lanthanum hexaboride is 55um.
The preparation method of the high temperature ceramic material, is as follows：
Borneol is added frying 14 seconds in 195 degrees Celsius of rapeseed oil, filters and be separated by solid-liquid separation, obtain medicine by step 1
Oil and fried rear borneol, borneol, which is crushed to 50 mesh and is put into ethanol solution, after frying extracts, and obtains borneol extracting solution；
Yttria, titanium carbide, sodium borohydride and silicon nitride are calcined under 1530 degrees Celsius, are mixed simultaneously by step 2
And ball mill grinding is carried out to 370 mesh, then medicine oil and ball milling are added thereto, then handled in the magnetic field of 7850 Gausses
70 minutes, obtain the first mixture；
Micron order lanthanum hexaboride is added in tetrahydrofuran and is uniformly dispersed with the rotating speed machinery of 2550rpm by step 3,
Obtain the second mixture；
Iodophor is added in borneol extracting solution and is stirred evenly with the rotating speed of 120rpm, obtains third mixing by step 4
Object；
Step 5, will the first mixture, third mixture and benzene sulfonic acid be added reaction kettle in, vacuumized in reaction kettle and
It is filled with inert gas, is kept for 10 hours under 220 degrees Celsius, is filtered under diminished pressure, washs, is dried in vacuo, obtain the 4th mixture；
Second mixture and the 4th mixture are mixed and wet ball grinding are uniform, then under 76 degrees Celsius by step 6
It is dry, obtain semi-finished product；
Step 7, by semi-finished product be added sintering furnace in, sintering furnace with the speed of 15 degrees celsius/minutes from room temperature to
It 590 degrees Celsius and is kept for 3.5 hours, then is warming up to 1650 degrees Celsius with the speed of 18 degrees celsius/minutes and keeps 10 small
When, it is then naturally cooling to 840 degrees Celsius and is kept for 5.5 hours, cooled to room temperature obtains finished product.
Embodiment 4
A kind of high temperature ceramic material includes the raw material of following parts by weight：6.5 parts of yttria, 20.6 parts of titanium carbide,
18.7 parts of tetrahydrofuran, 18.9 parts of micron order lanthanum hexaboride, 8.2 parts of benzene sulfonic acid, 3.4 parts of Iodophor, 10 parts of borneol, sodium borohydride
17.6 parts and 7.8 parts of silicon nitride.The grain size of micron order lanthanum hexaboride is 45um.The mass fraction of iodine is 1.36- in Iodophor
1.73%.
The preparation method of the high temperature ceramic material, is as follows：
Borneol is added frying 12 seconds in 205 degrees Celsius of vegetable oil, filters and be separated by solid-liquid separation, obtain medicine by step 1
Oil and fried rear borneol, borneol, which is crushed to 50 mesh and is put into ethanol solution, after frying extracts, and obtains borneol extracting solution；
Yttria, titanium carbide, sodium borohydride and silicon nitride are calcined under 1540 degrees Celsius, are mixed simultaneously by step 2
And ball mill grinding is carried out to 360 mesh, then medicine oil and ball milling are added thereto, then handled in the magnetic field of 8500 Gausses
76 minutes, obtain the first mixture；
Micron order lanthanum hexaboride is added in tetrahydrofuran and is uniformly dispersed with the rotating speed machinery of 2700rpm by step 3,
Obtain the second mixture；
Iodophor is added in borneol extracting solution and is stirred evenly with the rotating speed of 105rpm, obtains third mixing by step 4
Object；
Step 5, will the first mixture, third mixture and benzene sulfonic acid be added reaction kettle in, vacuumized in reaction kettle and
It is filled with inert gas, is kept for 9 hours under 245 degrees Celsius, is filtered under diminished pressure, washs, is dried in vacuo, obtain the 4th mixture；
Second mixture and the 4th mixture are mixed and wet ball grinding are uniform, then at 60-82 degrees Celsius by step 6
Lower drying, obtains semi-finished product；
Step 7 semi-finished product is added in the sintering furnace of 480Pa, and sintering furnace is with the speed of 15 degrees celsius/minutes from room temperature
It is warming up to 580 degrees Celsius and is kept for 4 hours, then be warming up to 1660 degrees Celsius with the speed of 18 degrees celsius/minutes and keep
It 10 hours, is then naturally cooling to 840 degrees Celsius and is kept for 6 hours, cooled to room temperature obtains finished product.
Comparative example 1
Except without borneol and Iodophor, remaining raw material and preparation method are same as Example 2.
Comparative example 2
Using existing heat-resisting material file 2 as a comparison.
The product of product and comparative example 1-2 to embodiment 1-4 carries out Mechanics Performance Testing in room temperature, at 1750 degrees Celsius
Lower holding is tested for the property after 80 hours, the results are shown in Table 1.
Table 1
The product of embodiment 1-4 bending strength at normal temperatures and fracture toughness are above comparison as can be seen from Table 1
The product of example 1-2, after being kept for 80 hours under 1750 degrees Celsius, the bending strength and fracture toughness of the product of embodiment 1-4 are remote
Far above the product of comparative example 1-2, illustrate that the product of embodiment 1-4 has good high temperature resistance.
It is obvious to a person skilled in the art that invention is not limited to the details of the above exemplary embodiments, Er Qie
In the case of without departing substantially from spirit or essential attributes of the invention, the present invention can be realized in other specific forms.Therefore, no matter
From the point of view of which point, the present embodiments are to be considered as illustrative and not restrictive, and the scope of the present invention is by appended power
Profit requires rather than above description limits, it is intended that all by what is fallen within the meaning and scope of the equivalent requirements of the claims
Variation is included within the present invention.
In addition, it should be understood that although this specification is described in terms of embodiments, but not each embodiment is only wrapped
Containing an independent technical solution, this description of the specification is merely for the sake of clarity, and those skilled in the art should
It considers the specification as a whole, the technical solutions in the various embodiments may also be suitably combined, forms those skilled in the art
The other embodiment being appreciated that.
Claims (7)
1. a kind of high temperature ceramic material, which is characterized in that include the raw material of following parts by weight：4.2-6.5 parts of yttria,
18.4-20.6 parts of titanium carbide, 15.4-18.7 parts of tetrahydrofuran, 14.5-18.9 parts of micron order lanthanum hexaboride, benzene sulfonic acid 5-8.2
Part, 1.6-3.4 parts of Iodophor, 6-10 parts of borneol, 12.5-17.6 parts of sodium borohydride and 5.5-7.8 parts of silicon nitride.
2. high temperature ceramic material according to claim 1, which is characterized in that the grain size of the micron order lanthanum hexaboride is
28-57um。
3. high temperature ceramic material according to claim 1, which is characterized in that the mass fraction of iodine is in the Iodophor
0.85-1.94%.
4. a kind of preparation method of high temperature ceramic material as described in any one of claims 1-3, which is characterized in that specific steps
It is as follows：
Borneol is added frying 10-15 seconds in 180-210 degrees Celsius of vegetable oil, filters and be separated by solid-liquid separation, obtain by step 1
Fried rear borneol is crushed to 50-60 mesh and is put into ethanol solution and extracted, obtains borneol extracting solution by medicine oil and fried rear borneol；
Yttria, titanium carbide, sodium borohydride and silicon nitride are calcined under 1340-1580 degrees Celsius, are mixed simultaneously by step 2
And ball mill grinding is carried out to 320-380 mesh, then medicine oil and ball milling are added thereto, then 7200-8600 Gausses'
It is handled 50-85 minutes in magnetic field, obtains the first mixture；
Micron order lanthanum hexaboride is added in tetrahydrofuran and mechanical dispersion is uniform, obtains the second mixture by step 3；
Iodophor is added in borneol extracting solution and is stirred evenly with the rotating speed of 90-135rpm, obtains third mixing by step 4
Object；
First mixture, third mixture and benzene sulfonic acid are added in reaction kettle, vacuumize and be filled in reaction kettle by step 5
Inert gas is kept for 8-11 hours under 190-245 degrees Celsius, is filtered under diminished pressure, washs, is dried in vacuo, obtain the 4th mixture；
Second mixture and the 4th mixture are mixed and wet ball grinding are uniform, then done under 60-82 degrees Celsius by step 6
It is dry, obtain semi-finished product；
Step 7, by semi-finished product be added sintering furnace in, sintering furnace with the speed of 10-15 degrees celsius/minutes from room temperature to
It 540-610 degrees Celsius and is kept for 3-5 hours, then 1480-1670 degrees Celsius is warming up to the speed of 15-20 degrees celsius/minutes
And it is kept for 8-12 hours, be then naturally cooling to 820-860 degrees Celsius and kept for 4.5-6 hours, cooled to room temperature
Obtain finished product.
5. the preparation method of high temperature ceramic material according to claim 4, which is characterized in that the vegetable oil includes jade
Any one in rice bran oil, soybean oil and rapeseed oil.
6. the preparation method of high temperature ceramic material according to claim 4, which is characterized in that the pressure of the sintering furnace
For 420-535Pa.
7. the preparation method of high temperature ceramic material according to claim 4, which is characterized in that the speed of the mechanical dispersion
Degree is 2400-2700rpm.
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