SU356264A1 - REFRACTORY MATERIAL - Google Patents
REFRACTORY MATERIALInfo
- Publication number
- SU356264A1 SU356264A1 SU1620333A SU1620333A SU356264A1 SU 356264 A1 SU356264 A1 SU 356264A1 SU 1620333 A SU1620333 A SU 1620333A SU 1620333 A SU1620333 A SU 1620333A SU 356264 A1 SU356264 A1 SU 356264A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- refractory material
- silicon nitride
- heat resistance
- silicon
- resistance
- Prior art date
Links
- 239000011819 refractory material Substances 0.000 title description 4
- 229910052581 Si3N4 Inorganic materials 0.000 description 6
- HQVNEWCFYHHQES-UHFFFAOYSA-N Silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 description 6
- HBMJWWWQQXIZIP-UHFFFAOYSA-N Silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 description 3
- 230000003628 erosive Effects 0.000 description 3
- 239000000835 fiber Substances 0.000 description 3
- 229910010271 silicon carbide Inorganic materials 0.000 description 3
- 239000000463 material Substances 0.000 description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 229910052582 BN Inorganic materials 0.000 description 1
- PZNSFCLAULLKQX-UHFFFAOYSA-N N#B Chemical compound N#B PZNSFCLAULLKQX-UHFFFAOYSA-N 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 239000004014 plasticizer Substances 0.000 description 1
- 238000004663 powder metallurgy Methods 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 229920003051 synthetic elastomer Polymers 0.000 description 1
- 239000005061 synthetic rubber Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Description
Изобретение относитс к области порошковой металлургии и может быть использовано дл изготовлени футеровочных плит дл металлургических печей, химических аппаратов и фасонных изделий, примен ющихс в качестве огнеупорных и электроизол ционных деталей в различных устройствах новой техники .The invention relates to the field of powder metallurgy and can be used for the manufacture of lining plates for metallurgical furnaces, chemical apparatuses and shaped articles used as refractory and electrical insulating parts in various devices of the new technique.
Известен огнеупорный материал на основе нитрида кремни .Known refractory material based on silicon nitride.
Недостатком изделий из нитрида кремни вл ютс низкие их механическа прочность, термостойкость и эрозионна устойчивость.The disadvantage of silicon nitride products is their low mechanical strength, heat resistance and erosion resistance.
С целью повышени механической прочности , термостойкости и эрозионной устойчивости предлагаемый огнеуиорный материал содержит , вес. %:In order to increase mechanical strength, heat resistance and erosion resistance, the proposed fire material contains, in weight. %:
Нитрид кремни 50-99Silicon Nitride 50-99
и, кроме того. Волокна карбида кремни 1-50and besides. Silicon Carbide Fibers 1-50
Издели из огнеупорного материала приготавливают следуюш,им образом.Products made from refractory material are prepared in the following way.
Норошок нитрида кремни смешивают с волокнами карбида кремни в заданном соотношении . Полученную смесь замешивают на пластификаторе - растворе синтетического каучука в бензине, прессуют заготовки и спекают их в печи сопротивлени с графитовым нагревателем.The silicon nitride sponge is mixed with silicon carbide fibers at a predetermined ratio. The mixture obtained is kneaded on a plasticizer — a solution of synthetic rubber in gasoline, pressed into blanks, and sintered in a resistance furnace with graphite heater.
Спекание производ т при температуре 1500-1650°С в засыпке пз нитрида бора с кремнием в токе азота в течение 2-3 час.Sintering is carried out at a temperature of 1500-1650 ° C in a bed of boron nitride with silicon in a nitrogen stream for 2-3 hours.
Предел ирочности полученного материала ири сжатии составл ет 37,8 кг/мм, а термостойкость , количество теплосмен при иагреве до 1500°С с последуюш,им охлаждением в воде , 52.The limit of irochnosti obtained material and compression is 37.8 kg / mm, and the heat resistance, the number of heat changes when heating to 1500 ° C, followed by cooling in water, 52.
Предмет изобретени Subject invention
Огнеупорный материал на основе нитрида кремни , отличающийс тем, что, с целью повышени механической прочности, термостойкости и эрозионной устойчивости, он содержит , вес. %:Silicon nitride-based refractory material, characterized in that, in order to increase mechanical strength, heat resistance and erosion resistance, it contains, by weight. %:
Нитрид кремни 50-99Silicon Nitride 50-99
и, кроме того. Волокна карбида кремни 1-50and besides. Silicon Carbide Fibers 1-50
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SU356264A1 true SU356264A1 (en) |
Family
ID=
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4558016A (en) * | 1980-08-18 | 1985-12-10 | Exxon Research And Engineering Co. | Ceramic fiber reinforced refractory |
| US5032551A (en) * | 1988-03-05 | 1991-07-16 | Toa Nenryo Kogyo Kabushiki Kaisha | Silicon nitride based ceramic fibers, process of preparing same and composite material containing same |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4558016A (en) * | 1980-08-18 | 1985-12-10 | Exxon Research And Engineering Co. | Ceramic fiber reinforced refractory |
| US5032551A (en) * | 1988-03-05 | 1991-07-16 | Toa Nenryo Kogyo Kabushiki Kaisha | Silicon nitride based ceramic fibers, process of preparing same and composite material containing same |
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