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采用自催化镀方法对Ａｌ＿２Ｏ＿３陶瓷表面进行３Ｎｉ－Ｂ镀层金属化处理，然后，把金属化的Ａｌ＿２Ｏ＿３分别和Ｎｉ、Ｆｅ－Ｎｉ合金组成偶对，进行了固相压力扩散焊，并通过组织成分分析对界面区的固相反应进行研究。结果表明，经特殊预处理的９９％Ａｌ＿２Ｏ＿３陶瓷，其表面镀层Ｎｉ－Ｂ与基体的结合强度可达２５０ＭＰａ以上，镀层呈非晶态，而热处理后可完全晶化。Ｎｉ－Ｂ／Ｎｉ（Ｆｅ－Ｎｉ）对，界面消失，成分完全均匀；Ａｌ＿２Ｏ＿３／Ｎｉ－Ｂ对，机械咬合紧密，在一定厚度的互扩散层（２．５μｍ）。试验中还发现，在压力扩散下，镀镍薄层（约８μｍ）表现出异常的扩散能力，尤其Ａｌ￣（３＋）向镀层小的扩散能力非常强，值得注意。
The surface of Al 2 O 3 ceramic was metallized by 3Ni-B plating by using autocatalytic plating method. Then, the metalized Al 2 O 3 was pair-coupled with Ni and Fe-Ni alloy respectively and subjected to solid-phase pressure diffusion welding. The solid-phase reaction in the interface region was studied. The results show that the 99% Al_2O_3 ceramics pretreated with Ni-B coating has a bonding strength of more than 250MPa, the coating is amorphous, and can be completely crystallized after heat treatment. Ni-B / Ni (Fe-Ni) pairs, the interface disappears, the composition is completely uniform; Al_2O_3 / Ni-B pairs, mechanical bite close, at a certain thickness of the interdiffusion layer (2.5μm). It was also found that under pressure diffusion, the nickel-plated thin layer (about 8μm) showed abnormal diffusion ability. In particular, it is noteworthy that Al ~ (3+) has a very small diffusion capacity into the coating.