【摘要】 介绍了用国产RJY 1型热机械仪对等静压金属铍材的热膨胀系数和高温密度的测试方法及测试结果。得出结论 :等静压铍材平均线膨胀系数 β在 ( 2 0～ 60 0℃ )区间内随温度t升高而直线增加 ;等静压铍材的密度 ρ在 ( 2 0～ 60 0℃ )区间内随温度t升高而直线下降更多还原

【Abstract】 The testing method and results of β (the average linear expansion coefficient) and ρ (high temperature density) of isostatic pressed beryllium material by using thermal mechanic instrument were introduced The conclusions are as follows: The β of isostatic pressed beryllium material lineally increases with the increasing of temperature from 20 to 600 ℃ The ρ of isostatic pressed beryllium material lineally decreases with the increasing of temperature from 20 to 600 ℃更多还原