The isothermal section of the phase diagram of the Co-Ni-Zr ternary system at 1198 K has been investigated by means of diffusion triple and electron microprobe analysis. This isothermal section consists of six threephase regions. The homogeneity ranges of Co23Zr6, Co2Zr, CoZr, Ni5Zr, Ni7Zr2 and NiZr are about 16.7%-18.8 at.%Zr, 28.6%-32.3 at.%Zr, 49.2%-51.7 at.%Zr, 16.0%-18.7 at.%Zr, 22.3%-24.1 at.%Zr and 49.8%-52.1 at.%Zr, respectively; CoZr2 and NiZr2 are nearly linear compounds. The largest olubilities of Ni in Co23Zr6, Co2Zr and CoZr are about 4.9 at.%Ni, 5.4 at.%Ni and 4.5 at.%Ni, respectively. CoZr2 and NiZr2 form a continuous solid solution (Co,Ni)Zr2. No ternary compound is observed.

Phase relations for Fe-Ti-Zr ternary system at 1023K have been investigated by means of diffusion triple together with electron probe microanalysis technique, a series of tie-lines and tie-triangles have been determined and the isothermal section at 1023K has been established, and seven three-phase fields have been figured out. It was found that all of the Fe-Zr and Fe-Ti binary phases show large ternary solubility, and Zr and Ti can substitute for each other to a certain degree. The largest solid solubility of Ti in Fe2Zr and in FeZr3 is about 8.5 at.% Ti and 35.7 at.% Ti, and of Zr in Fe2Ti and FeTi is about 5.6 at.% Zr and 6.3 at.% Zr, respectively. The solubility range of Fe2Ti, FeTi, Fe2Zr and FeZr3 is 64.9 72.7 at.% Fe, 46.6-49.1 at.% Fe, 65.8-71.7 at.% Fe and 20.9-24.3 at.% Fe, respectively. No ternary compound was found.

通过湿法预处理，用偶联剂KH-570对羰基铁粉进行表面改性，制备了综合性能较好的并用橡胶基实用型磁敏橡胶，研究了羰基铁粉含量对天然橡胶/丁苯橡胶（NR/SBR）并用橡胶基磁敏橡胶性能的影响；同时利用扫描电镜研究了改性羰基铁粉表面和磁敏橡胶复合材料断面的微观结构。结果表明，通过偶联剂改性的羰基铁粉其晶体结构未发生变化，且表面有一层致密的包覆层；以NR/SBR并用橡胶为基体的磁敏橡胶，当羰基铁粉用量为300份时，可表现出较好的机械性能和磁流变效应。