【摘要】 研究了成分梯度对Ｔｉ－Ａｌ－Ｎ 系功能梯度薄膜的抗热震性能的影响．研究结果表明：梯度薄膜的抗热震性能明显优于均质薄膜；随着梯度的增加，Ｔｉ－Ａｌ－Ｎ 系功能梯度薄膜的抗热震性能大幅度提高；计算结果表明在Ｔｉ－Ａｌ－Ｎ 系功能梯度薄膜的厚度方向，热膨胀系数从基体到表层是缓慢连续减小的更多还原

【Abstract】 The effect of compositions gradient on the thermal shock resistance properties of Ti Al N functional gradient coatings has been investigated. It is shown that the thermal shock resistance properties of Ti Al N functional gradient coatings is better than that of uniform coatings and that the thermal shock resistance of Ti Al N functional gradient coatings increases with increasing the composition gradient. The coefficient of liner thermal expansion of functional gradient coatings decreases gradually from substrate to surface.更多还原