6.3 Test facilities
Regarding the test facilities, an electronic balance (Type JJ1000Y) was
used for testing the mass of sample (accuracy 0.01g). A leeb hardness
tester (Type TH-120A(D)) was applied for testing the surface strength of
sample. A supersonic reflectoscope (Type RSM-SY5N) was utilized for
testing the P-wave velocity of sample, a full set of touch-based
sampling analysis software that can preset the lead time and find the
initial value automatically. Portable micrograph (Type 3R-WMMOTV) was
used for the surface micrograph of sample (resolution of 960*240).
Refrigerating machine (Type DW-40) was adopted for freezing the sample
(with a volume of 80L and a minimum temperature of -40℃). A dry oven
(Type 101-3SB) was applied for thawing the sample (the maximum heating
temperature can reach 300℃). A low vacuum scanning electron microscope
(Type JSM-5600LV) was used for analyzing the microstructure of sample
(HV resolution of 3.5nm, and LV resolution of 5.0nm.). A X-ray powder
diffractometer (Type D/Max-TTRⅢ) was utilized for analyzing the mineral
and chemical composition of the sample, sharp shadow high temperature in
situ material structure analysis system and Galipixcel 2d and Xe
proportional detector.