Glassy carbon specimens of 0.5 mm thickness were irradiated with 9.2 MeV protons under tensile stresses from 5 to 25 MPa to maximum doses of about 4 x 10(23) m(-2) at temperatures of 220 and 420 degrees C, respectively. Length measurements under irradiation at low stresses showed transient compaction, the amount of which depended on initial specimen density. Uniaxial tensile stresses caused irradiation creep with a creep compliance epsilon/sigma . phi t of approximate to 1 x 10(-33) Pa-1 m(2), possibly slightly decreasing with increasing temperature or with decreasing density. Compaction rate and irradiation creep rate per atomic displacement rate of glassy carbon under proton irradiation are larger by al least one order of magnitude than the respective values of graphite and pyrocarbon under neutron irradiation. (C) 1997 Elsevier Science Ltd All rights reserved. References: 37
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机译:在220和420°C的温度下,分别在5至25 MPa的拉伸应力下,用9.2 MeV质子照射厚度为0.5 mm的玻璃状碳试样,最大剂量约为4 x 10(23) m(-2)。在低应力辐照下的长度测量显示瞬时压实,其量取决于初始试样密度。单轴拉应力引起辐照蠕变,蠕变柔度为 epsilon/sigma。phi t约为1 x 10(-33) Pa-1 m(2),可能随着温度的升高或密度的降低而略有降低。质子辐照下玻璃碳的压实速率和每原子位移速率的辐照蠕变率比中子辐照下石墨和热解碳的压实速率和辐照蠕变率至少大一个数量级。(C) 1997 Elsevier Science Ltd 保留所有权利。[参考文献: 37]
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