Microstructures of Melt-Processed and Spark Plasma Sintered Ceramic Waste Forms

被引：17

作者：

Clark, B. M. ^{[1
]}

Tumurugoti, P. ^{[1
]}

Sundaram, S. K. ^{[1
]}

Amoroso, J. W. ^{[2
]}

Marra, J. C. ^{[2
]}

Brinkman, K. S. ^{[3
]}

机构：

[1] Alfred Univ, New York State Coll Ceram, Kazuo Inamori Sch Engn, Alfred, NY 14802 USA

[2] Savannah River Natl Lab, Aiken, SC 29808 USA

[3] Clemson Univ, Dept Mat Sci & Engn, Clemson, SC 29634 USA

来源：

METALLURGICAL AND MATERIALS TRANSACTIONS E-MATERIALS FOR ENERGY SYSTEMS | 2014年 / 1卷 / 04期

关键词：

D O I：

10.1007/s40553-014-0035-4

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Hollandite-rich ceramic waste forms have been demonstrated to exhibit high durability while simultaneously accommodating a wide range of radionuclides in their matrices. This paper presents preliminary results on the preparation and characterization of ceramic waste forms prepared by two different methods melt processing and spark plasma sintering (SPS). Both processes resulted in similar phase assemblages but exhibited different microstructures depending on processing method. The SPS samples exhibited fine-grained (<1 mu m) and dispersed phases, whereas the melt -processed sample contained larger grains (10-20 mu m) of specific phases. Additional data will need to be collected on the aqueous leaching durability and radiation resistance to evaluate each processing method for waste form performance.

引用

页码：341 / 348

页数：8

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