典型文献
Characterization of microstructural features of Tamusu mudstone
文献摘要：
Tamusu mudstone formation,located in the Alxa area in western Inner Mongolia,is considered a po-tential host formation for high-level radioactive waste(HLW)underground disposal in China.In this study,complementary analyses with X-ray diffraction(XRD),field emission scanning electron micro-scopy(FE-SEM),mercury intrusion porosimetry(MIP),and N2 physisorption isotherm were conducted on the Tamusu mudstone to characterize its physical characteristics and microstructural features,such as mineral compositions and pore structure.Several minerals,including carbonates,feldspar,clays and analcime,were identified in Tamusu mudstone by XRD.Images from FE-SEM show that pores in the Tamusu mudstone were dominantly on nanometer scale and generally located within their mineral matrix or at the interface with non-porous minerals.The combination of the MIP and N2 physisorption curves indicated that the Tamusu mudstone has diverse pore sizes,a porosity varying from 2.34％to 2.84％,and a total pore volume in the range of 0.0065-0.0222 cm3/g with the average pore diameter ranging from 9.6 nm to 19.23 nm.The specific surface area measured by MIP(2.572-5.861 m2/g)was generally higher than that by N2 physisorption(1.29-3.04 m2/g),due to the pore network effect,pore shape(e.g.ink-bottle shape),or technique limits.The results related to pore information can be applied as an input in the future to model single-or multi-phase fluid flow and the transport of radionuclides in porous geomedium by migration and diffusion.
文献关键词：
中图分类号：
作者姓名：
Hongdan Yu;Chen Lu;Weizhong Chen;Diansen Yang;Honghui Li
作者机构：
State Key Laboratory of Geomechanics and Geotechnical Engineering,Institute of Rock and Soil Mechanics,Chinese Academy of Sciences,Wuhan,430071,China;University of Chinese Academy of Sciences,Beijing,100049,China;China National Nuclear Corporation,Key Laboratory on Geological Disposal of High-level Radioactive Waste,China Institute for Radiation Protection,Taiyuan,030006,China
文献出处：
引用格式：
[1]Hongdan Yu;Chen Lu;Weizhong Chen;Diansen Yang;Honghui Li-.Characterization of microstructural features of Tamusu mudstone)[J].岩石力学与岩土工程学报（英文版）,2022(06):1923-1932
A类：
Tamusu,analcime,geomedium
B类：
Characterization,microstructural,features,mudstone,located,Alxa,area,western,Inner,Mongolia,considered,tential,host,level,radioactive,waste,HLW,underground,disposal,China,this,study,complementary,analyses,ray,diffraction,field,emission,scanning,electron,scopy,FE,mercury,intrusion,porosimetry,MIP,N2,physisorption,isotherm,were,conducted,characterize,physical,characteristics,such,compositions,structure,Several,minerals,including,carbonates,feldspar,clays,identified,by,Images,from,show,that,pores,dominantly,nanometer,scale,generally,within,their,matrix,interface,porous,combination,curves,indicated,diverse,sizes,porosity,varying,total,volume,range,cm3,average,diameter,ranging,specific,surface,measured,higher,than,due,network,effect,shape,ink,bottle,technique,limits,results,related,information,be,applied,input,future,model,single,multi,phase,fluid,flow,transport,radionuclides,migration,diffusion
AB值：
0.540981
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