Investigation of in-reactor cesium chemical behavior in TEPCO's Fukushima Daiichi Nuclear Power Station accident, 9; Thermodynamics of evaporation of silicon compounds at high temperatures

Kobayashi, Yoshinao*; Ueda, Shigeru*; Sato, Isamu*; Osaka, Masahiko

SiO and Si(OH) $_{4}$ can be Si source for Cs-bearing particle and other in-reactor compounds during Fukushima-Daiichi NPS accident. Dependencies of vapor pressure of those species on oxygen partial pressure and tenperature were evaluated thermodunamically. And experimental condition by chemical equilibrium method was determined in focusing Cs $_{2}$ O-SiO $_{2}$ system.

Language	:	Japanese
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Meeting title	:	日本原子力学会2018年春の年会
Held date	:	2018/03
Location (city)	:	吹田
Location (country)	:	日本
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Keywords	:	不溶性放射性微粒子; セシウムシリケート; 熱力学; 蒸気圧; 福島第一原子力発電所事故; Fukushima Daiichi Nuclear Power Station Accident
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Registration No. : BB20171758
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