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Types of Dilatometers and Vitreous Silica I
Dilatometers for Measurements
Dilatometer for Measurements from
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accuracy AL/L alumina tube dilatometer apparatus ASTM Bureau of Standards calibration ceramic chamber chemically pure platinum coefficient cooling cycle copper correction cryogenic dilatometer cryostat designed determined dial gage differential dilatometer dila dilatometry displacement errors excitation voltage extensometer Fizeau interferometer flange furnace fused silica glass head assembly heater heating and cooling Heating Cycle heating rate inches long inches/inch insulators interferometer invar linear thermal expansion liquid helium liquid nitrogen LVDT measure the thermal metals micrometer molybdenum mounted output pansion pedestal perature plate potentiometer quartz rhenium room temperature sample holder sample tube screw secondary standard shown in Figure silica tube dilatometer specimen length Statham transducer surface grinder susceptor tempera temperature range test specimen thermal ex thermal expansion measurement thermal expansion test thermocouple thoria tometer tube and rod tube material tube type dilatometers Tuckerman gage ture vacuum vaporizer vitreous silica rod vitreous silica tube wire X-Y recorder Zircaloy