【摘要】 采用新的陶瓷工艺技术,在气氛保护条件下,通过固相烧结反应法制备出温差电多晶材料。对膺三元固溶体化合物 P 型（72%Sb₂Te₃+25%Bi₂Te₃+3%Sb₂Se₃）和 N 型（90%Bi₂Te₃+5%Sb₂Te₃+5%Sb₂Se₃）的掺杂陶瓷样品进行了性能与结构研究。找到了最佳工艺制度。样品性能参数为:N 型:α=186μV/K σ=1250Ω^-1·cm^-1 λ=14.7mW/（cm.K） Z=2.9×10^-3/KP 型:α=220μV/K σ=900 Ω^-1·cm^-1 λ=14.0mW/（cm.K） Z=3.1×10^-3/K更多还原

【Abstract】 Thermoelectric polycrystal ceramic materials were prepared by a new ceramictechnology.The specimens were sintered by solid reaction in a sealed evacuated quartz tube.The new ceramic cooling materials have a inhomogeneous structure, but higher mechanicalstrength and the thermoelectric properies.The P-type 72%Sb₂Te₃+25%Bi₂Te₃+3%Sb₂Se₃doped and N-type 90%Bi₂Te₃+5%Sb₂Te₃+5%Sb₂Se₃ doped were studied.High qualityBi₂Te₃-Sb₂Te₃-Sb₂Se₃ pseudo-ternary solid solution can be prepared under optimum technol-ogy conditions.The polycrystal ceramic materials have a obvious layered structure,but sinter-ing is closer.更多还原