材料性能随浸渍次数增加而优化，浸渍4次的显气孔率和吸水率最低，体积密度和热稳定性最高。
The apparent porosity and water absorption were the lowest, the bulk density and heat-resistant property were the highest after dipping for 4 times.
另外，还计算了导热系数与体积密度、显气孔率、透气度和原料等级之间的相关系数。
Correlation coefficients between the thermal conductivity and bulk density, open porosity, permeability and raw material grade was obtained respectively.
随烧结温度的升高，材料的显气孔率降低，而体积密度、硬度和抗压强度均增加。
With the increase of sintering temperature, the apparent porosity of sample decreases, while bulk density, hardness and compressive strength increased.
随烧结温度的升高，材料的显气孔率降低，而体积密度、硬度和抗压强度均增加。
With the increase of sintering temperature, the apparent porosity of sample decreases, while bulk density, hardness and compressive strength increased.
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