干旱区生态环境知识资源中心(Arid): Determination of Reactive Surface Area of Melt Glass

Arid

DOI	10.2172/15005717
报告编号	UCRL-ID-145181
来源ID	OSTI_ID: 15005717
	Determination of Reactive Surface Area of Melt Glass
	Bourcier,W.L.; Roberts, S.; Smith, D.K.; Hulsey, S.; Newton,L.; Sawvel, A.; Bruton, C.; Papelis, C.; Um, W.; Russell, C. E.; Chapman,J.
英文摘要	A comprehensive investigation of natural and manmade silicate glasses, and nuclear melt glass was undertaken in order to derive an estimate of glass reactive surface area. Reactive surface area is needed to model release rates of radionuclides from nuclear melt glass in the subsurface. Because of the limited availability of nuclear melt glasses, natural volcanic glass samples were collected which had similar textures and compositions as those of melt glass. A flow-through reactor was used to measure the reactive surface area of the analog glasses in the presence of simplified NTS site ground waters. A measure of the physical surface area of these glasses was obtained using the BET gas-adsorption method. The studies on analog glasses were supplemented by measurement of the surface areas of pieces of actual melt glass using the BET method. The variability of the results reflect the sample preparation and measurement techniques used, as well as textural heterogeneity inherent to these samples. Based on measurements of analog and actual samples, it is recommended that the hydraulic source term calculations employ a range of 0.001 to 0.01 m{sup 2}/g for the reactive surface area of nuclear melt glass.
出版年	2000
报告类型	Technical Report
语种	英语
国家	美国
来源学科分类	54 ENVIRONMENTAL SCIENCES ; 58 GEOSCIENCES ; AVAILABILITY ; GLASS ; GROUND WATER ; HYDRAULICS ; RADIOISOTOPES ; SAMPLE PREPARATION ; SILICATES ; SOURCE TERMS ; SURFACE AREA
URL	http://www.osti.gov/scitech/servlets/purl/15005717
资源类型	科技报告
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/268139
推荐引用方式 GB/T 7714	Bourcier,W.L.,Roberts, S.,Smith, D.K.,et al. Determination of Reactive Surface Area of Melt Glass,2000.