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Porous silicon nitride ceramic and preparation method thereof
The invention discloses a porous silicon nitride ceramic and a preparation method thereof. The ceramic material is prepared from the following components in parts by weight: 2-4 parts of silicon nitride powder, 3-9 parts of glycerol, 4-6 parts of a sintering aid, 5-9 parts of a binder, 6-8 parts of polystyrene, 3-7 parts of polyvinyl butyral, 2-4 parts of aluminum oxide, 3-6 parts of a pore-forming agent, 3-5 parts of melamine, 4-8 parts of a dispersing agent, 3-7 parts of formaldehyde, 4-8 parts of defoaming agent, and 5-9 parts of Ethyl orthosilicate. Through the arrangement of glycerin andpolyvinyl butyral, the shrinkage rates of the materials are close to the same, so that the ceramic is prevented from cracking, the quality of the ceramic is improved, and when the ceramic materials are mixed, the shrinkage rates of the materials are close to those of the materials, so that the quality of the ceramic is improved. When the ceramic material is subject to blending, the dissolving effect among the materials is improved through the dispersing agent, so that the sintering effect of the ceramic is improved.
本发明公开了一种多孔氮化硅陶瓷及其制备方法，由以下原料制备而成，按重量份数比为：氮化硅粉2‑4重量份、甘油3‑9重量份、烧结助剂4‑6重量份、粘结剂5‑9重量份、聚苯乙烯6‑8重量份、聚乙烯醇缩丁醛3‑7重量份、氧化铝2‑4重量份、造孔剂3‑6重量份、三聚氰胺3‑5重量份、分散剂4‑8重量份、甲醛3‑7重量份、消泡剂4‑8重量份和正硅酸乙酯5‑9重量份，在本发明制备的过程中，通过甘油和聚乙烯醇缩丁醛的设置，使得物料之间的收缩率接近相同，从而使得防止陶瓷出现裂纹的情况，提高陶瓷的质量，且在对陶瓷材料混配时，通过分散剂提高物料之间的溶合效果，从而提高陶瓷的烧结效果。
Porous silicon nitride ceramic and preparation method thereof
The invention discloses a porous silicon nitride ceramic and a preparation method thereof. The ceramic material is prepared from the following components in parts by weight: 2-4 parts of silicon nitride powder, 3-9 parts of glycerol, 4-6 parts of a sintering aid, 5-9 parts of a binder, 6-8 parts of polystyrene, 3-7 parts of polyvinyl butyral, 2-4 parts of aluminum oxide, 3-6 parts of a pore-forming agent, 3-5 parts of melamine, 4-8 parts of a dispersing agent, 3-7 parts of formaldehyde, 4-8 parts of defoaming agent, and 5-9 parts of Ethyl orthosilicate. Through the arrangement of glycerin andpolyvinyl butyral, the shrinkage rates of the materials are close to the same, so that the ceramic is prevented from cracking, the quality of the ceramic is improved, and when the ceramic materials are mixed, the shrinkage rates of the materials are close to those of the materials, so that the quality of the ceramic is improved. When the ceramic material is subject to blending, the dissolving effect among the materials is improved through the dispersing agent, so that the sintering effect of the ceramic is improved.
本发明公开了一种多孔氮化硅陶瓷及其制备方法，由以下原料制备而成，按重量份数比为：氮化硅粉2‑4重量份、甘油3‑9重量份、烧结助剂4‑6重量份、粘结剂5‑9重量份、聚苯乙烯6‑8重量份、聚乙烯醇缩丁醛3‑7重量份、氧化铝2‑4重量份、造孔剂3‑6重量份、三聚氰胺3‑5重量份、分散剂4‑8重量份、甲醛3‑7重量份、消泡剂4‑8重量份和正硅酸乙酯5‑9重量份，在本发明制备的过程中，通过甘油和聚乙烯醇缩丁醛的设置，使得物料之间的收缩率接近相同，从而使得防止陶瓷出现裂纹的情况，提高陶瓷的质量，且在对陶瓷材料混配时，通过分散剂提高物料之间的溶合效果，从而提高陶瓷的烧结效果。
Porous silicon nitride ceramic and preparation method thereof
一种多孔氮化硅陶瓷及其制备方法
LI YONGQUAN (author) / CHEN JUXI (author) / ZENG QINGDANG (author) / ZHU FULIN (author) / XIAO LI (author)
2021-01-26
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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