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1.The joining mechanism of diffusion bonding of Si_3N_4 using RS Al-based interlayer is that: Ti and Al diffuse toward interface、react with Si_3N_4 and form TiN、AlN ere interface phases.
急冷Al基中间层扩散焊连接Si_3N_4陶瓷的机制是:活性元素Ti向界面扩散富集并与Si_3N_4发生化学反应,生成界面相TiN,同时中间层中的Al也向界面富集并与Si_3N_4发生化学反应,生成AIN界面相。收藏指正
2.Transient coupled radiation and conduction in a two layer isotropic scattering semitransparent non|gray medium with thin opaque coatings was studied by ray tracing/nodal analysis method. Both boundary surfaces were opaque and diffuse, and the interface between the two layers was semitransparent.
采用光线踪迹 /节点分析法研究了在漫反射、表面不透明、分界面半透明的两层平板状吸收、各向同性散射性非灰介质内的辐射与导热瞬态耦合换热。收藏指正
3.The diffusion behavior of carbon, Cr, Ni and Fe in dissimilar metal welds between a ferritic steel and an austenitic steel (Cr5Mo/Cr21Ni12) has been investigated by using transmission electron microscopy (TEM), energy dispersive X-ray microanalysis (EDX) and electron probe microanalyzer (EPMA). The results show that Cr and Ni diffuse toward the weld interface while Fe diffuses in the reverse direction;
利用透射电子显微镜（TEM）、能谱仪（EDX）和电子探针显微分析仪（EPMA）研究了珠光体钢／奥氏体钢（Cr5Mo／Cr21Ni12）异质焊头在高温时效和长期服役中元素C，Cr，Ni，Fe的扩散行为结果表明：时效时奥氏体钢中Cr，Ni原子向熔合界面方向扩散，Fe原子向相反的方向扩散；收藏指正
4.The formation mechanism of diffusion dissolution layer was discussed by means of Thomas-fermi-dirac-cheng model. The results show that Zn atoms can diffuse continuously into Ni particles,NiZn and Ni3Zn22 intermetallic compounds were formed at the interface of Ni powder and Zn powder during sintering at 200 ℃ for 15 hours.
研究表明,Ni粉和Zn粉在200℃,15h的烧结过程中,Zn原子不断扩散进入到Ni晶体中,在Ni粉颗粒基体上形成了由NiZn和Ni3Zn22金属间化合物构成的“带状”扩散溶解层。收藏指正
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