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In-situ generated flaky sialon-enhanced alumina-carbon refractory material and preparation method thereof
The invention specifically relates to an in-situ generated flaky sialon-enhanced alumina-carbon refractory material and a preparation method thereof. According to the technical scheme, the method comprises the following steps: mixing and grinding 50-70 percent by weight of alundum particles, 10-30 percent by weight of corundum fine powder, 1-8 percent by weight of active alumina micro powder, 1-20 percent by weight of carbon source and 1-5 percent by weight of antioxidant serving as raw materials, and a bonding agent added in an amount of 1-6 percent by weight based on the total weight of the raw materials, ageing the materials, forming and drying; preserving heat for 1-6 hours under the condition of reducing atmosphere or nitrogen atmosphere at the temperature of 1,300-1,600 DEG C to obtain the in-situ generated flaky sialon-enhanced alumina-carbon refractory material. The preparation cost is low. The prepared in-situ generated flaky sialon-enhanced alumina-carbon refractory material has the characteristics of high thermal vibration stability, superior fracture resistance, high normal-temperature mechanical property, low refractory material consumption and long service life.
In-situ generated flaky sialon-enhanced alumina-carbon refractory material and preparation method thereof
The invention specifically relates to an in-situ generated flaky sialon-enhanced alumina-carbon refractory material and a preparation method thereof. According to the technical scheme, the method comprises the following steps: mixing and grinding 50-70 percent by weight of alundum particles, 10-30 percent by weight of corundum fine powder, 1-8 percent by weight of active alumina micro powder, 1-20 percent by weight of carbon source and 1-5 percent by weight of antioxidant serving as raw materials, and a bonding agent added in an amount of 1-6 percent by weight based on the total weight of the raw materials, ageing the materials, forming and drying; preserving heat for 1-6 hours under the condition of reducing atmosphere or nitrogen atmosphere at the temperature of 1,300-1,600 DEG C to obtain the in-situ generated flaky sialon-enhanced alumina-carbon refractory material. The preparation cost is low. The prepared in-situ generated flaky sialon-enhanced alumina-carbon refractory material has the characteristics of high thermal vibration stability, superior fracture resistance, high normal-temperature mechanical property, low refractory material consumption and long service life.
In-situ generated flaky sialon-enhanced alumina-carbon refractory material and preparation method thereof
LI XIANGCHENG (author) / GUO DINGQIAO (author) / CHEN PING AN (author) / ZHU BOQUAN (author)
2015-09-23
Patent
Electronic Resource
English
IPC:
C04B
Kalk
,
LIME
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