PdNiCrV钎料钎焊SiC陶瓷的接头组织及性能.pdf

k k n Vol No X k ACTA METALLURGICA SINICA Nov pp PdNiCrV SiC A C B OGK J M ELI DPQ HNF VnTu i PdNiCrV xux SiC VNdd PdNiCrVSiBt F uG SiC doWRu min dogbdoctmjxthm q MPa mP SiC dtMv Pd Ni BJ SiC Cd PdSi NiSi V SiC UdocN Cr V J C Si C CrVC CrVSi CrV Si C f
uvdOD PdSi NiSi VSi CqJTE V C Cr C  
 SiC tMu TG A MICROSTRUCTURES AND PROPERTY OF SiCSiC JOINTS BRAZED WITH PdNiCrV BRAZING FILLER CHEN Bo XIONG Huaping MA O Wei GUO Wanlin CHENG Yaoyong LI Xiaohong Lab oratory of Welding and Forging Beijing Institute of Aeronautical Materials Beijing Correspondent CHEN Bo Tel Email chenb com oundation of China Nos and Supported by National Natural Science F and State Exploiting R esearch Foundation for National Defenc e of China NoHK Manuscript received in revised form ABSTRACT Wettability of PdNiCrV alloy on SiC was studied with the sessile drop metho d The newly develop ed PdNiCrVSiB mass fraction brazing ller could b e used for joining SiC The ro om temp erature threep oint b end strength of the SiCSiC join ts brazed with rapidly solidied brazing foils at for min is MPa In the interfacial layer near to SiC elements Pd and Ni preferentially diused into SiC and resulted in the reaction pro ducts of PdSi phase NiSi phase and graphite In the reaction zone further away from the SiC mai