Abstract
The microstructure of waste form materials suitable for immobilizing actinide elements can be classified into the following two categories. (1) Actinide elements are immobilized in an crystallized matrix after the formation of solid solution or compounds. (2) Actinide elements are immobilized in a durable material by encapsulation. Based on crystal chemistry, durability data, phase diagrams, compositions of natural minerals, eleven oxide compounds and one non-oxide compound are pointed out to be new candidates included in category (1). The other survey on material compositions, manufacturing conditions and feasibility shows that SiC, glassy carbon, ZrO{sub 2}, Ti-O-Si-C ceramics are preferable matrix materials included in category (2). Polymers and fine powders are suitable as starting materials for the encapsulation of actinide elements because of their excellent sinterability. (author) 50 refs.
Hayakawa, Issei;
Kamizono, Hiroshi
[1]
- Japan Atomic Energy Research Inst., Tokai, Ibaraki (Japan). Tokai Research Establishment
Citation Formats
Hayakawa, Issei, and Kamizono, Hiroshi.
Investigation of waste form materials suitable for immobilizing actinide elements in high-level waste.
Japan: N. p.,
1992.
Web.
Hayakawa, Issei, & Kamizono, Hiroshi.
Investigation of waste form materials suitable for immobilizing actinide elements in high-level waste.
Japan.
Hayakawa, Issei, and Kamizono, Hiroshi.
1992.
"Investigation of waste form materials suitable for immobilizing actinide elements in high-level waste."
Japan.
@misc{etde_10111205,
title = {Investigation of waste form materials suitable for immobilizing actinide elements in high-level waste}
author = {Hayakawa, Issei, and Kamizono, Hiroshi}
abstractNote = {The microstructure of waste form materials suitable for immobilizing actinide elements can be classified into the following two categories. (1) Actinide elements are immobilized in an crystallized matrix after the formation of solid solution or compounds. (2) Actinide elements are immobilized in a durable material by encapsulation. Based on crystal chemistry, durability data, phase diagrams, compositions of natural minerals, eleven oxide compounds and one non-oxide compound are pointed out to be new candidates included in category (1). The other survey on material compositions, manufacturing conditions and feasibility shows that SiC, glassy carbon, ZrO{sub 2}, Ti-O-Si-C ceramics are preferable matrix materials included in category (2). Polymers and fine powders are suitable as starting materials for the encapsulation of actinide elements because of their excellent sinterability. (author) 50 refs.}
place = {Japan}
year = {1992}
month = {Jul}
}
title = {Investigation of waste form materials suitable for immobilizing actinide elements in high-level waste}
author = {Hayakawa, Issei, and Kamizono, Hiroshi}
abstractNote = {The microstructure of waste form materials suitable for immobilizing actinide elements can be classified into the following two categories. (1) Actinide elements are immobilized in an crystallized matrix after the formation of solid solution or compounds. (2) Actinide elements are immobilized in a durable material by encapsulation. Based on crystal chemistry, durability data, phase diagrams, compositions of natural minerals, eleven oxide compounds and one non-oxide compound are pointed out to be new candidates included in category (1). The other survey on material compositions, manufacturing conditions and feasibility shows that SiC, glassy carbon, ZrO{sub 2}, Ti-O-Si-C ceramics are preferable matrix materials included in category (2). Polymers and fine powders are suitable as starting materials for the encapsulation of actinide elements because of their excellent sinterability. (author) 50 refs.}
place = {Japan}
year = {1992}
month = {Jul}
}