A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Preparation method of low-cost normal pressure-sintered silicon carbide ceramics
The invention relates to a preparation method of low-cost normal pressure-sintered silicon carbide ceramics. The preparation method is characterized by comprising the following steps: (1) preparing a main raw material; (2) preparing silicon carbide slurry; (3) granulating; (4) molding granulating powder, so as to obtain a biscuit; and (5) sintering, so as to obtain silicon carbide ceramics. Compared with the prior art, the preparation method has the advantages that coarse silicon carbide powder is used as a main raw material for carrying out normal pressure sintering, the density of the coarse silicon carbide powder can reach 3.0g/cm<3>, the average density can reach more than or equal to 94%, and the density and the average density are approximate to the performance of normal pressure sintering density of micro-fine silicon carbide powder, so that application of most fields is met; the cost of coarse-grained silicon carbide powder is much lower than that of the micro-fine silicon carbide powder, so that the production cost of the silicon carbide ceramics is substantially lowered; the preparation method is applicable to industrial batch production.
Preparation method of low-cost normal pressure-sintered silicon carbide ceramics
The invention relates to a preparation method of low-cost normal pressure-sintered silicon carbide ceramics. The preparation method is characterized by comprising the following steps: (1) preparing a main raw material; (2) preparing silicon carbide slurry; (3) granulating; (4) molding granulating powder, so as to obtain a biscuit; and (5) sintering, so as to obtain silicon carbide ceramics. Compared with the prior art, the preparation method has the advantages that coarse silicon carbide powder is used as a main raw material for carrying out normal pressure sintering, the density of the coarse silicon carbide powder can reach 3.0g/cm<3>, the average density can reach more than or equal to 94%, and the density and the average density are approximate to the performance of normal pressure sintering density of micro-fine silicon carbide powder, so that application of most fields is met; the cost of coarse-grained silicon carbide powder is much lower than that of the micro-fine silicon carbide powder, so that the production cost of the silicon carbide ceramics is substantially lowered; the preparation method is applicable to industrial batch production.
Preparation method of low-cost normal pressure-sintered silicon carbide ceramics
CAO JIANWU (author) / SHI XIUMEI (author) / WANG JINGHUI (author) / LI GUOBIN (author) / LI ZHIPENG (author) / LI XIAOJING (author) / GUO JIANBIN (author) / ZHANG LIJUN (author)
2016-02-03
Patent
Electronic Resource
English
IPC:
C04B
Kalk
,
LIME
| European Patent Office | 2021
| European Patent Office | 2024
| European Patent Office | 2017
Electrochemical corrosion of liquid phase sintered silicon carbide ceramics
| British Library Online Contents | 2013