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硼酸镁晶须
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硼酸镁晶须
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工学
无机晶须新材料
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magnesium borate whisker
硼酸镁晶须
分子式为Mg2B2O5,相对分子质量为150.23。外观为白色蓬松状固体,显微镜下为纤维状单晶体,在扫描电镜显微镜下观察硼酸镁晶须长度为10~50微米、直径0.5~20微米,相对密度为2.91,莫氏硬度为5.5;熔点为1360℃,耐热温度为1000℃;拉伸强度为3.92吉帕,弹性模量为264.6;热膨胀速率18×10-6/℃(平行纤维轴),(2~10)×10-6/℃(垂直纤维轴)。又称焦硼酸镁晶须。
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field electron microscope
field emission
field emission array cathode
field emission Auger electron spectroscopy
field emission cathode
field emission electric propulsion
field emission microscope
field emission microscope, FEM
field emission scanning electron microscope
field emission scanning electron microscope, FESEM
field epidemiology
field equation
field evaporation
field evapotranspiration
field-excited
field exercise
field experiment
field experimental data scoring
field experimental design
field experimentation
field extension
field extension; extension of a field
field first aid equipment
field flattener
field flattening
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