The study of compressive strength of phosphate-bonded investment materials
Li, Z.; Hao, F.; Xiong, Y.
Hua Xi Kou Qiang Yi Xue Za Zhi 21(4): 284-286
2003
ISSN/ISBN: 1000-1182 PMID: 14513584 Document Number: 555382
The purpose of this study was to compare the compressive strength of phosphate-bonded investments. The three sorts of investments were mixed according to manufacturer's recommendation before poured in the molds. After heated up to 900 degrees C, every sample was mounted on a universal experimental machine to test its compressive strength in ambient. Significant differences were found between the four groups(P < 0.01). From the data above it is concluded that the compressive strength of X-20 Chrome Investment mixed with the special liquid was the highest.