Radiation effect on the viscosity of the simple B_2O_3 glasses

机译：辐射对简单B_2O_3玻璃粘度的影响

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The creep velocity of B_2O_3 glass fibers under irradiation with 2.5 MeV electrons at low flux (around 5 10~(13) e~-cm~(-2)s~(-1)) has been studied versus temperature. As under very high energy heavy ions irradiation (1.6 GeV argon), the viscosity is drastically reduced below 300 deg C. An important difference between the two kinds of irradiation is the occurrence of a compaction phenomenon at the beginning of electron irradiation experiments. The results can be understood by assuming two totally different mechanisms: a relaxation driven by melting of the glass along the path of the ions for very high energy heavy ion irradiations and a relaxation driven by individual radiation induced points defects for high energy electron irradiations.

机译：研究了在低通量（约5 10〜（13）e〜-cm〜（-2）s〜（-1））下以2.5 MeV电子辐照B_2O_3玻璃纤维的蠕变速度。与在非常高能量的重离子辐照下（1.6 GeV氩气）一样，粘度在300℃以下急剧降低。两种辐照之间的重要区别是在电子辐照实验开始时出现了压实现象。通过假设两种完全不同的机制可以理解结果：对于高能量重离子辐照，玻璃沿着离子路径熔化而引起的弛豫；对于高能量电子辐照，由各个辐射诱发的点缺陷引起的弛豫。

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《Symposium on Atomistic Mechanisms in Beam Synthesis and Irradiation of Materials, held December 1-2, 1997, Boston, Massachusetts, U.S.A.》|1997年|p.117-122|共6页
会议地点 Boston MA(US)
作者
A.Barbu; G.Jaskierowicz;
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Radiation effect on the viscosity of the simple B_2O_3 glasses

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