CN85104097B - Boron nitride fiber reinforced reaction sintered silicon nitride ceramic - Google Patents
Boron nitride fiber reinforced reaction sintered silicon nitride ceramic Download PDFInfo
- Publication number
- CN85104097B CN85104097B CN85104097A CN85104097A CN85104097B CN 85104097 B CN85104097 B CN 85104097B CN 85104097 A CN85104097 A CN 85104097A CN 85104097 A CN85104097 A CN 85104097A CN 85104097 B CN85104097 B CN 85104097B
- Authority
- CN
- China
- Prior art keywords
- boron nitride
- silicon nitride
- matrix material
- fiber reinforced
- ceramic
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- 239000000835 fiber Substances 0.000 title claims abstract description 20
- 229910052582 BN Inorganic materials 0.000 title claims abstract description 18
- PZNSFCLAULLKQX-UHFFFAOYSA-N Boron nitride Chemical compound N#B PZNSFCLAULLKQX-UHFFFAOYSA-N 0.000 title claims abstract description 18
- 229910052581 Si3N4 Inorganic materials 0.000 title claims abstract description 17
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 title claims abstract description 17
- 238000006243 chemical reaction Methods 0.000 title claims description 8
- 239000000919 ceramic Substances 0.000 title abstract description 10
- 239000012535 impurity Substances 0.000 claims abstract description 6
- 239000011159 matrix material Substances 0.000 claims description 20
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 6
- 238000000034 method Methods 0.000 claims description 5
- 238000005245 sintering Methods 0.000 claims description 5
- 230000002787 reinforcement Effects 0.000 claims description 4
- 238000000465 moulding Methods 0.000 claims description 3
- 235000013312 flour Nutrition 0.000 claims description 2
- 239000000377 silicon dioxide Substances 0.000 claims description 2
- 238000002679 ablation Methods 0.000 abstract description 12
- 239000000463 material Substances 0.000 abstract description 8
- 239000002131 composite material Substances 0.000 abstract description 5
- 239000011521 glass Substances 0.000 abstract description 4
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 230000035939 shock Effects 0.000 abstract description 4
- 239000012784 inorganic fiber Substances 0.000 abstract 1
- 239000011226 reinforced ceramic Substances 0.000 abstract 1
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 4
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 description 3
- 229910001882 dioxygen Inorganic materials 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 239000000758 substrate Substances 0.000 description 3
- 238000002485 combustion reaction Methods 0.000 description 2
- 238000005336 cracking Methods 0.000 description 2
- 239000013078 crystal Substances 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- 238000004321 preservation Methods 0.000 description 2
- 239000010453 quartz Substances 0.000 description 2
- FRWYFWZENXDZMU-UHFFFAOYSA-N 2-iodoquinoline Chemical compound C1=CC=CC2=NC(I)=CC=C21 FRWYFWZENXDZMU-UHFFFAOYSA-N 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- LTPBRCUWZOMYOC-UHFFFAOYSA-N beryllium oxide Inorganic materials O=[Be] LTPBRCUWZOMYOC-UHFFFAOYSA-N 0.000 description 1
- 235000015895 biscuits Nutrition 0.000 description 1
- 229910010293 ceramic material Inorganic materials 0.000 description 1
- 235000013339 cereals Nutrition 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000010419 fine particle Substances 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 238000007731 hot pressing Methods 0.000 description 1
- 239000011368 organic material Substances 0.000 description 1
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
Landscapes
- Ceramic Products (AREA)
Abstract
A composite material belongs to inorganic fiber reinforced ceramics, which is prepared by using boron nitride fiber to reinforce and react and sinter silicon nitride ceramics, and has lower dielectric constant and dielectric loss; good ablation resistance and the like, is suitable for high-temperature use, and has simple manufacturing process and lower cost. The thermal shock resistance of the material is greatly superior to that of the common ceramic or glass antenna window material, so that the material is more suitable for being used in occasions with large temperature shock. The material provided by the invention contains 5-20 wt% of boron nitride fiber, the preferred fiber content is 8-17 wt%, and the rest is silicon nitride and impurities.
Description
The present invention is the matrix material that belongs to a kind of inorganic fibre reinforcement ceramic matrix.This matrix material has lower specific inductivity and dielectric loss, has fabulous heat-shock resistance ablation resistance, is suitable for making the high temperature antenna windows.
Antenna windows is to the attitude of control space vehicle and make aircraft hit accurately that giving sets the goal plays keying action.Requirement to this antenna windows is low, high temperature resistant, anti-ablation of good thermal shock, dielectric properties and suitable mechanical property.Common ceramic antenna window material or glass antenna window material, as (U.S. AD-A007956) such as quartz, silicon nitride, aluminum oxide, boron nitride, beryllium oxide, devitrified glasses, because heat-shock resistance is relatively poor, all can not in the environment of rapid variation of temperature and extreme temperatures, use.2000 ℃ of (combustion chamber pressure 15 kilograms per centimeter such as silicon nitride, quartz for example
2, oxygen-gas flame) and test all seriously cracking under the condition.In order to remedy the existing relatively poor shortcoming of high temperature antenna windows heat-shock resistance, antenna windows can only be installed in the low and less position of temperature variation of aircraft temperature.Tend to make the control circuit of aircraft complicated but install like this, make the weight distribution imbalance (for balance will increase unnecessary weight) of aircraft, make aircraft influence the accuracy and the accuracy at target of remote control in some time appearance " blind area ".
People (Journal of the American Ceramic Society such as K, S, MAZDIYASNI, Vol64, NO.7,1981, pp.415～419) having studied in high strength, high-modulus silicon nitride ceramics body material with low modulus close grain BN is disperse phase, form matrix material, improve electrical property and thermal shock resistance properties.What adopt is heat pressing process, and complex process should not be made big goods.The inventor was disperse phase reinforcement Si with fine particle BN once
3N
4Pottery adopts technologies such as reaction sintering, hot pressing to make matrix material, tests all seriously cracking under above-mentioned 2000 ℃ of conditions.
The object of the present invention is to provide a kind of matrix material with inorganic fibre reinforcement pottery.This matrix material has heat-shock resistance and is better than general pottery or glass antenna window material greatly, and dielectric properties are low, dielectric loss is little, ablation resistance is good, is convenient to advantages such as preservation and manufacture craft are simple, cost is lower.Therefore be more suitable under the occasion of big thermal shocking, using.
Matrix material provided by the invention contains 5～20%(weight) boron nitride fibre, surplus is silicon nitride and impurity, contains 8～17%(weight for the preferential matrix material of selecting) boron nitride fibre.
The manufacture method of matrix material provided by the invention is earlier boron nitride fibre to be mixed with silica flour, and moulding is carried out reaction sintering then in logical nitrogen stove, makes silicon and nitrogen reaction in the base substrate generate silicon nitride, makes matrix material fixed.Preservation and protection against the tide for the ease of matrix material are coated with redoubling through solidification treatment at composite material surface with special organic materials.
The advantage of matrix material manufacturing of the present invention be molding biscuit after giving nitrogenize, can be machined into complex-shaped base substrate, (reaction sintering) had only about 0.1% linear shrinkage when finished base substrate advanced nitrogenize for the second time again.So the attrition process amount of goods seldom, and cost is lower.
Table 1 is that boron nitride fibre content is 10%(weight) performance of composites.
An example of the performance of table 1 boron nitride fibre excess weld metal silicon nitride ceramic composite
The performance performance data
1. boron nitride fibre content (weight %) 10
2. density (gram per centimeter
2) 2.16
3. specific inductivity (9375MHZ) 3.96
4. dielectric loss (9375MHZ) 6.65 * 10
-3
5. ablation rate
(1) oxygen-gas flame: about 2000 ℃ of temperature, combustion chamber pressure 15 kilograms per centimeter
2
Line ablation (mm/second) 0.011-0.04
Matter ablation (Grams Per Second) 0.312
(2) arc stagnation point ablation: arc chamber gaseous tension 5.1 kilograms per centimeter
2, 2460 kilocalories/kilogram of gas values
Line ablation (mm/second) 0.616
Matter ablation (Grams Per Second) 0.229
6. heat-shock resistance *
(1) oxygen-gas flame does not split
(2) arc stagnation point ablation does not split
7. bending strength (MPa) 57.0
8. tensile strength (MPa) 27.0
9. tension strain (%) 0.14
10. Young's modulus (MPa) 7.6 * 10
4
11. work of rupture (joules per meter
2) 38.5
12. thermal diffusivity (centimetre
2/ second) 0.0479(360 ℃)
0.0322（713℃）
0.0256（1070℃）
0.0236（1265℃）
13. 0.1784(77 ℃ of specific heat (card/gram ℃))
0.2166（197℃）
0.2398（317℃）
0.2544（437℃）
14. 0.0277(332 ℃ of thermal conductivity (card/second centimetre ℃))
0.0247（524℃）
15. thermal expansivity (/ ℃)
(room temperature-500 ℃) 2.41 * 10
-6
(room temperature-1200 ℃) 2.88 * 10
-6
* test conditions is identical with the test conditions of this table " 5. ablation rate ".
The dielectric properties of silicon nitride and boron nitride ceramic material are lower, and both thermal expansivity are complementary, and chemical reaction does not take place for both under hot conditions.Therefore it is suitable selecting boron nitride fibre excess weld metal silicon nitride pottery.And when reaction sintering, in this matrix material, grow many silicon nitride crystal whiskers.It is favourable to the heat-shock resistance of this matrix material that this silicon nitride matrix adds network structure that boron nitride fibre adds silicon nitride crystal whisker.
The impurity of this matrix material sees Table 2.
The impurity of table 2 boron nitride fibre excess weld metal silicon nitride ceramic composite
Impurity foreign matter content (weight %)
Fe
2O
3＜1.0
Al
2O
3＜0.4
CaO ＜0.05
K
2O ＜0.01
Na
2O ＜0.01
Si ＜0.2
O ＜1.0。
Claims (2)
1, a kind of matrix material that belongs to inorganic fibre reinforcement pottery comprises that boron nitride fibre mixes with silica flour, process such as moulding and reaction sintering, it is characterized in that boron nitride fibre content is 5～20%(weight), all the other are silicon nitride and impurity.
2,, it is characterized in that the preferential matrix material of selecting contains 8～17%(weight by the described matrix material of claim 1) boron nitride fibre.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN85104097A CN85104097B (en) | 1985-05-24 | 1985-05-24 | Boron nitride fiber reinforced reaction sintered silicon nitride ceramic |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN85104097A CN85104097B (en) | 1985-05-24 | 1985-05-24 | Boron nitride fiber reinforced reaction sintered silicon nitride ceramic |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN85104097A CN85104097A (en) | 1986-11-19 |
| CN85104097B true CN85104097B (en) | 1988-10-05 |
Family
ID=4793628
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN85104097A Expired CN85104097B (en) | 1985-05-24 | 1985-05-24 | Boron nitride fiber reinforced reaction sintered silicon nitride ceramic |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN85104097B (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1060457C (en) * | 1997-02-03 | 2001-01-10 | 汪宁 | Composite porcelain containing hexagonal boron nitride and preparation method thereof |
| CN101555156B (en) * | 2009-05-15 | 2011-11-30 | 山东大学 | Boron nitride crystal whisker/silicon nitride ceramic composite material and preparation method thereof |
| CN102167610B (en) * | 2011-01-12 | 2012-11-21 | 中材高新材料股份有限公司 | Preparation method of boron nitride fiber fabric-reinforced silicon nitride ceramic material |
| CN103724036B (en) * | 2013-07-23 | 2016-04-20 | 太仓派欧技术咨询服务有限公司 | A kind of Wave-transparent silicon nitride radome material and preparation method thereof |
| CN106116617B (en) * | 2016-06-20 | 2019-05-14 | 华南理工大学 | A kind of ultra-fine boron nitride porous fibre toughening WC composite material and preparation method |
| CN108409336A (en) * | 2018-05-28 | 2018-08-17 | 江苏东浦精细陶瓷科技股份有限公司 | Silicon nitride ceramics and preparation method thereof |
-
1985
- 1985-05-24 CN CN85104097A patent/CN85104097B/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| CN85104097A (en) | 1986-11-19 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Claussen | Fracture toughness of Al2O3 with an unstabilized ZrO2Dispersed phase | |
| EP0144349B1 (en) | High temperature and alkali-resistant refractory fibre for reinforcing cementitious products and those reinforced products | |
| Guo et al. | Carbon fibre-reinforced silicon nitride composite | |
| US5132254A (en) | Coated fibers for ceramic matrix composites | |
| CN1004388B (en) | Improvements in or relating to nuclear fuel pellets | |
| EP0268721B2 (en) | Pulverulent silicon nitride composition reinforced with silicon carbide whiskers and its use for the manufacturing of sintered parts | |
| CN85104097B (en) | Boron nitride fiber reinforced reaction sintered silicon nitride ceramic | |
| CN1005369B (en) | Method for manufacturing ceramic substrate for microelectronic circuit | |
| EP0424036A2 (en) | B-N-Cx hybrid coatings for inorganic fiber reinforcement materials | |
| Homeny et al. | Comparison of the properties of oxycarbide and oxynitride glasses | |
| US5304517A (en) | Toughened glass ceramic substrates for semiconductor devices subjected to oxidizing atmospheres during sintering | |
| CA2054871A1 (en) | Sol-gel method for making ceramic materials | |
| Goldstein et al. | Reaction cured borosilicate glass coating for low-density fibrous silica insulation | |
| CN1160031A (en) | Fused quartz ceramic material | |
| CN1003371B (en) | Low shrinkage refractory kaolin fiber and manufacturing method thereof | |
| JPH03183641A (en) | Oxygen-nitrogen glass composition, its presursor and vitreous ceramic and application thereof to preparation of composite material | |
| US3171750A (en) | Elevated temperature resistant ceramic structural adhesives | |
| GB2172282A (en) | Toughened glass-ceramics | |
| Xue et al. | A New SiC‐Whisker‐Reinforced Lithium Aluminosilicate Composite | |
| JPS6227353A (en) | Glass ceramic composite material | |
| CN110668836A (en) | Composite material for radome/antenna window and preparation method thereof | |
| CN87100475B (en) | Boron-containing nickel-based conductor and preparation method thereof | |
| Zhou et al. | Mechanical properties and strengthening mechanism of SiC particle reinforced porcelain | |
| JPS63162568A (en) | Glass-ceramic composite body | |
| Montedo et al. | Design, characterization and preparation of glass-ceramic glazes belonging to the LZSA glass system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C13 | Decision | ||
| GR02 | Examined patent application | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |