抄録
The dilution effect of SiC on the measurement of zirconia gel powder samples by temperature programmed desorption (TPD) was investigated for the purpose of reducing the pressure in the analysis chamber of the apparatus and for obtaining sharper TPD curves similar to that of the corresponding zirconia gel film. Zirconia gel powder was added to SiC GC#1500 (Shinano Electric Refining). Mixed powder samples of 49, 59 and 81 wt% SiC were used in this study. When the samples were measured in the TPD apparatus, the pressure in the analysis chamber decreased depending on the amount of SiC added. The peak intensity and temperature of the TPD curves of the samples decreased and the peak temperature also shifted to a lower level corresponding to the SiC content. The TPD curve of a mixed powder sample of zirconia-81wt% SiC was similar to that of the zirconia gel film. These results indicated that small quantities of gases evolved uniformly from the powder, resulting in the decrease of the pressure and the peak temperature shift to a lower level. An FE-SEM analysis of the samples revealed that zirconia gel particles adhered to SiC particles.
https://ror.org/05jk51a88 
