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本工作研究了β″-Al2O3陶瓷压型粉料的化学组成；制备方法对其密度、电导及显微结构的影响．与水基料浆喷雾干燥相比，酒精基料浆稳定性好，易于调制，其喷雾干燥粉料收获率高，化学组成均匀，耐大气湿气性好，粉体颗粒可在较低压力下被压碎，生坯压实密度较高．采用Li2O－Al2O3和Na2O－Al2O3混合物的高温煅烧产物为组元，配成化学组成为0.69～075wt％Li2O，8．85～9．10wt％Na2O，其余为Al2O3的酒精基料浆喷雾干燥粉料，可获得密度、电导和显微结构俱佳的高性能β″-Al2O3陶瓷．
In this work, the chemical composition of β “-Al2O3 ceramic powder and the influence of preparation methods on its density, conductance and microstructure were studied. Compared with water-based slurry spray drying, the alcohol based slurry has good stability and easy The spray drying powder has the advantages of high harvesting rate, uniform chemical composition and good resistance to atmospheric moisture, the powder particles can be crushed under lower pressure and the compaction density of the green body is higher, and Li2O-Al2O3 and Na2O- Al2O3 mixture was calcined at high temperature to form a mixture of ethanol-based slurry with a chemical composition of 0.69-075 wt% Li2O and 8.85-9.10 wt% Na2O and the balance of Al2O3 to obtain a mixture of density, conductivity and Microstructure of the best high-performance β ”-Al2O3 ceramics.