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采用先进的放电等离子烧结技术(SPS)制备Ni-7W(at%,下同)(Ni7W)合金初始锭,通过高能球磨使Ni、W粉末充分混合,优化冷轧和热处理工艺制备出高立方织构的Ni7W合金基带。基带晶粒大小均匀,电子背散射衍射技术(EBSD)测试结果显示:该Ni7W基带表面10°以内立方织构晶粒含量高达99.4%,10°以内晶界长度含量为93.6%;XRD测得的基带(111)Phi扫描和(200)摇摆曲线表明:基带的面内和面外半高宽分别是6.32°和5.4°,表明基带具有锐利的立方织构。在该基带上制备的La2Zr2O7(LZO)过渡层显示,LZO很好地外延生长了基底的织构,LZO薄膜(222)面φ扫描和(400)面摇摆曲线的半高宽值分别为7.57o°和5.73°。
The initial ingots of Ni-7W (at%, same below) (Ni7W) alloy were prepared by the advanced discharge plasma sintering (SPS) technology. The high-cube weaves were prepared by high energy ball milling and the Ni and W powders were well mixed and optimized by cold rolling and heat treatment Structure of Ni7W alloy base band. The results of electron backscatter diffraction (EBSD) showed that the grain size of cubic textured grains within 10 ° on the surface of Ni7W was as high as 99.4% and the grain boundary length within 10 ° was 93.6%. The XRD The baseband (111) Phi scan and the (200) rocking curve show that the in-band and out-of-plane half-widths of the baseband are 6.32 ° and 5.4 °, respectively, indicating that the baseband has a sharp cubic texture. The La2Zr2O7 (LZO) transition layer prepared on this substrate shows that the LZO epitaxial growth of the substrate is very good. The half-width values of φ scan and (400) rocking curve of LZO thin film (222) are 7.57o ° and 5.73 °.