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Sialon-MgAl2O4-SiC complex phase wear-resistant ceramic material and preparation method therefor
The present invention discloses a Sialon-MgAl2O4-SiC complex phase ceramic material and a preparation method therefor. As aluminum ash, magnesite and SiC are taken as raw materials, natural quartz powder services as an additive, and paper pulp dry powder, industrial dextrin or polyvinyl alcohol are taken as a bonding agent, the preparation method comprises the specific steps: firstly, the aluminum ash and the magnesite are subjected to ball milling to form mixed fine powder; secondly, SiC particles and fine powder are added into the mixed fine powder and uniformly agitated; a proper amount of the bonding agent is added and pressed into a blank; and the blank body is subjected to isostatic pressing treatment and drying, and is sintered in a high-temperature kiln under a nitrogen atmosphere so as to obtain the product. The Sialon-MgAl2O4-Sic complex phase wear resistant ceramic material prepared by adopting the method not only solves the problem of difficulty in sintering the SiC wear resistant ceramic material and low cost, but also provides an important technical way for zero emission resource utilization of the aluminum ash and the high-efficiency utilization of the magnesite.
Sialon-MgAl2O4-SiC complex phase wear-resistant ceramic material and preparation method therefor
The present invention discloses a Sialon-MgAl2O4-SiC complex phase ceramic material and a preparation method therefor. As aluminum ash, magnesite and SiC are taken as raw materials, natural quartz powder services as an additive, and paper pulp dry powder, industrial dextrin or polyvinyl alcohol are taken as a bonding agent, the preparation method comprises the specific steps: firstly, the aluminum ash and the magnesite are subjected to ball milling to form mixed fine powder; secondly, SiC particles and fine powder are added into the mixed fine powder and uniformly agitated; a proper amount of the bonding agent is added and pressed into a blank; and the blank body is subjected to isostatic pressing treatment and drying, and is sintered in a high-temperature kiln under a nitrogen atmosphere so as to obtain the product. The Sialon-MgAl2O4-Sic complex phase wear resistant ceramic material prepared by adopting the method not only solves the problem of difficulty in sintering the SiC wear resistant ceramic material and low cost, but also provides an important technical way for zero emission resource utilization of the aluminum ash and the high-efficiency utilization of the magnesite.
Sialon-MgAl2O4-SiC complex phase wear-resistant ceramic material and preparation method therefor
HUANG JUNTONG (Autor:in) / HOU XIFENG (Autor:in) / WANG XIAOJUN (Autor:in) / ZHANG SHANGDUO (Autor:in) / CUI YINGWU (Autor:in)
19.08.2015
Patent
Elektronische Ressource
Englisch
IPC:
C04B
Kalk
,
LIME
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