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研究了热电材料PbTe在高温（700～900K）、氧分压为0．01～100kPa时的氧化行为发现氧化物均为Pb—D—O的三元化合物且随温度及氧分压的变化有规律地分布在高温低氧分压条件下，试样质量减少，生成Pb3TeO5或者Pb5TeO7；而在低温高氧分压条件下，试样质量增加，生成PbTeO3或者PbTeO3／Pb2TeO4．
The results show that PbTe is a ternary compound with Pb-D-O oxide at high temperature (700 ~ 900K) and oxygen partial pressure of 0.01 ~ 100kPa, and the variation with temperature and partial pressure of oxygen The results show that Pb3TeO5 or Pb5TeO7 is formed under the condition of high temperature and low oxygen partial pressure, and the mass of sample is increased to produce PbTeO3 or PbTeO3 / Pb2TeO4.