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研究了ＳｉＯ２－Ｓｉ３Ｎ４天线窗材料的热学性能和抗热震性能。结果表明，复合材料的热膨胀系数、导温系数、导热系数随Ｓｉ３Ｎ４含量的增加而增大，对于同一Ｓｉ３Ｎ４含量的复合材料，三者均随温度的升高而增大，复合材料保持了ＳｉＯ２基体材料的良好抗热震性。
The thermal properties and thermal shock resistance of SiO2-Si3N4 antenna windows were studied. The results show that the thermal expansion coefficient, thermal conductivity coefficient and thermal conductivity of the composites increase with the increase of Si3N4 content. For the same Si3N4 content composites, the three increase with the increase of temperature, the composite material maintains the SiO2 matrix Good thermal shock resistance of the material.