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Expedited spark plasma sintering of high‐density uranium mononitride pellet utilizing U 2 N 3 powder
The feasibility of a non‐stoichiometric synthesis strategy for uranium mononitride (UN) pellet fabrication is experimentally verified with spark plasma sintering of U 2 N 3 powder in this study. The method removes the denitride process (reduction of U 2 N 3 to UN powder) from the conventional UN pel...
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| Published in: | Journal of the American Ceramic Society 2024-01, Vol.107 (1), p.47-55 |
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| Main Authors: | , , , , |
| Format: | Article |
| Language: | English |
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| cites | cdi_FETCH-crossref_primary_10_1111_jace_194213 |
| container_end_page | 55 |
| container_issue | 1 |
| container_start_page | 47 |
| container_title | Journal of the American Ceramic Society |
| container_volume | 107 |
| creator | Ahn, Jungsu Kim, Geon Nam, Changhyeon Ha, Woong Ahn, Sangjoon |
| description | The feasibility of a non‐stoichiometric synthesis strategy for uranium mononitride (UN) pellet fabrication is experimentally verified with spark plasma sintering of U
2
N
3
powder in this study. The method removes the denitride process (reduction of U
2
N
3
to UN powder) from the conventional UN pellet fabrication, and it still successfully provided near‐perfect UN stoichiometry and high density (94 %TD). During the spark plasma sintering of U
2
N
3
powder, vacuum pressure increase and powder height, decrease were concurrently measured above ∼1173 K, which indicates the nitrogen gas emission and higher density UN powder formation from the in‐situ decomposition of lower‐density U
2
N
3
powder. The X‐ray diffraction (XRD) analysis on the sintered pellets obtained directly from U
2
N
3
powder showed an excellent match with the existing XRD reference data of UN. The measured density of U
2
N
3
‐sintered UN pellets was higher (85 %TD) than that of UN‐sintered UN pellets (79 %TD) at relatively low sintering temperature (1773 K). With a higher sintering temperature of 2073 K, high pellet densities (94 %TD) were obtained from both U
2
N
3
and UN powders. |
| doi_str_mv | 10.1111/jace.19421 |
| format | article |
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2
N
3
powder in this study. The method removes the denitride process (reduction of U
2
N
3
to UN powder) from the conventional UN pellet fabrication, and it still successfully provided near‐perfect UN stoichiometry and high density (94 %TD). During the spark plasma sintering of U
2
N
3
powder, vacuum pressure increase and powder height, decrease were concurrently measured above ∼1173 K, which indicates the nitrogen gas emission and higher density UN powder formation from the in‐situ decomposition of lower‐density U
2
N
3
powder. The X‐ray diffraction (XRD) analysis on the sintered pellets obtained directly from U
2
N
3
powder showed an excellent match with the existing XRD reference data of UN. The measured density of U
2
N
3
‐sintered UN pellets was higher (85 %TD) than that of UN‐sintered UN pellets (79 %TD) at relatively low sintering temperature (1773 K). With a higher sintering temperature of 2073 K, high pellet densities (94 %TD) were obtained from both U
2
N
3
and UN powders.</description><identifier>ISSN: 0002-7820</identifier><identifier>EISSN: 1551-2916</identifier><identifier>DOI: 10.1111/jace.19421</identifier><language>eng</language><ispartof>Journal of the American Ceramic Society, 2024-01, Vol.107 (1), p.47-55</ispartof><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><cites>FETCH-crossref_primary_10_1111_jace_194213</cites><orcidid>0000-0002-6876-7641</orcidid></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,780,784,27924,27925</link.rule.ids></links><search><creatorcontrib>Ahn, Jungsu</creatorcontrib><creatorcontrib>Kim, Geon</creatorcontrib><creatorcontrib>Nam, Changhyeon</creatorcontrib><creatorcontrib>Ha, Woong</creatorcontrib><creatorcontrib>Ahn, Sangjoon</creatorcontrib><title>Expedited spark plasma sintering of high‐density uranium mononitride pellet utilizing U 2 N 3 powder</title><title>Journal of the American Ceramic Society</title><description>The feasibility of a non‐stoichiometric synthesis strategy for uranium mononitride (UN) pellet fabrication is experimentally verified with spark plasma sintering of U
2
N
3
powder in this study. The method removes the denitride process (reduction of U
2
N
3
to UN powder) from the conventional UN pellet fabrication, and it still successfully provided near‐perfect UN stoichiometry and high density (94 %TD). During the spark plasma sintering of U
2
N
3
powder, vacuum pressure increase and powder height, decrease were concurrently measured above ∼1173 K, which indicates the nitrogen gas emission and higher density UN powder formation from the in‐situ decomposition of lower‐density U
2
N
3
powder. The X‐ray diffraction (XRD) analysis on the sintered pellets obtained directly from U
2
N
3
powder showed an excellent match with the existing XRD reference data of UN. The measured density of U
2
N
3
‐sintered UN pellets was higher (85 %TD) than that of UN‐sintered UN pellets (79 %TD) at relatively low sintering temperature (1773 K). With a higher sintering temperature of 2073 K, high pellet densities (94 %TD) were obtained from both U
2
N
3
and UN powders.</description><issn>0002-7820</issn><issn>1551-2916</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2024</creationdate><recordtype>article</recordtype><recordid>eNqVjz1OAzEQha0IpCw_DSeYGmmD7SSQrVEQVSqoLSueTSZ4bcvjFYQqR8gZOQnZiAvwmqcnfa_4hLhTcqJOedjZNU5UM9NqJCo1n6taN-rxQlRSSl0_LbQciyvm3WmqZjGrRLv8SuiooANONn9A8pY7C0yhYKawgdjCljbbn8PRYWAqe-izDdR30MUQA5VMDiGh91igL-Tpe7i9g4YVTCHFT4f5Rly21jPe_vW1uH9Zvj2_1uscmTO2JmXqbN4bJc1gYgYTczaZ_gv-BSQ7UkI</recordid><startdate>202401</startdate><enddate>202401</enddate><creator>Ahn, Jungsu</creator><creator>Kim, Geon</creator><creator>Nam, Changhyeon</creator><creator>Ha, Woong</creator><creator>Ahn, Sangjoon</creator><scope>AAYXX</scope><scope>CITATION</scope><orcidid>https://orcid.org/0000-0002-6876-7641</orcidid></search><sort><creationdate>202401</creationdate><title>Expedited spark plasma sintering of high‐density uranium mononitride pellet utilizing U 2 N 3 powder</title><author>Ahn, Jungsu ; Kim, Geon ; Nam, Changhyeon ; Ha, Woong ; Ahn, Sangjoon</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-crossref_primary_10_1111_jace_194213</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2024</creationdate><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Ahn, Jungsu</creatorcontrib><creatorcontrib>Kim, Geon</creatorcontrib><creatorcontrib>Nam, Changhyeon</creatorcontrib><creatorcontrib>Ha, Woong</creatorcontrib><creatorcontrib>Ahn, Sangjoon</creatorcontrib><collection>CrossRef</collection><jtitle>Journal of the American Ceramic Society</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Ahn, Jungsu</au><au>Kim, Geon</au><au>Nam, Changhyeon</au><au>Ha, Woong</au><au>Ahn, Sangjoon</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Expedited spark plasma sintering of high‐density uranium mononitride pellet utilizing U 2 N 3 powder</atitle><jtitle>Journal of the American Ceramic Society</jtitle><date>2024-01</date><risdate>2024</risdate><volume>107</volume><issue>1</issue><spage>47</spage><epage>55</epage><pages>47-55</pages><issn>0002-7820</issn><eissn>1551-2916</eissn><abstract>The feasibility of a non‐stoichiometric synthesis strategy for uranium mononitride (UN) pellet fabrication is experimentally verified with spark plasma sintering of U
2
N
3
powder in this study. The method removes the denitride process (reduction of U
2
N
3
to UN powder) from the conventional UN pellet fabrication, and it still successfully provided near‐perfect UN stoichiometry and high density (94 %TD). During the spark plasma sintering of U
2
N
3
powder, vacuum pressure increase and powder height, decrease were concurrently measured above ∼1173 K, which indicates the nitrogen gas emission and higher density UN powder formation from the in‐situ decomposition of lower‐density U
2
N
3
powder. The X‐ray diffraction (XRD) analysis on the sintered pellets obtained directly from U
2
N
3
powder showed an excellent match with the existing XRD reference data of UN. The measured density of U
2
N
3
‐sintered UN pellets was higher (85 %TD) than that of UN‐sintered UN pellets (79 %TD) at relatively low sintering temperature (1773 K). With a higher sintering temperature of 2073 K, high pellet densities (94 %TD) were obtained from both U
2
N
3
and UN powders.</abstract><doi>10.1111/jace.19421</doi><orcidid>https://orcid.org/0000-0002-6876-7641</orcidid></addata></record> |
| fulltext | fulltext |
| identifier | ISSN: 0002-7820 |
| ispartof | Journal of the American Ceramic Society, 2024-01, Vol.107 (1), p.47-55 |
| issn | 0002-7820 1551-2916 |
| language | eng |
| recordid | cdi_crossref_primary_10_1111_jace_19421 |
| source | Wiley-Blackwell Read & Publish Collection |
| title | Expedited spark plasma sintering of high‐density uranium mononitride pellet utilizing U 2 N 3 powder |
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