Low-temperature sintering of Li4SiO4 spheres with high crushing load using mesoporous silica as Si sources

Li4SiO4 has been widely studied as tritium breeder and high temperature CO2 capture material. Tritium breeding rate and CO2 adsorption capacity are closely related to lithium content and microstructure. Since high sintering temperatures result in grain coarsening and lithium sublimation, it is a gre...

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Main Authors: Gong Yichao, Chen Xin, Kang Kun, Wang Yuefei, Na Qingze, Ren Shuai, Zhang Guojun
Format: Article
Language:English
Published: University of Novi Sad 2023-03-01
Series:Processing and Application of Ceramics
Subjects:
Online Access:https://www.doiserbia.nb.rs/img/doi/1820-6131/2023/1820-61312301055G.pdf
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author Gong Yichao
Chen Xin
Kang Kun
Wang Yuefei
Na Qingze
Ren Shuai
Zhang Guojun
author_facet Gong Yichao
Chen Xin
Kang Kun
Wang Yuefei
Na Qingze
Ren Shuai
Zhang Guojun
author_sort Gong Yichao
collection DOAJ
description Li4SiO4 has been widely studied as tritium breeder and high temperature CO2 capture material. Tritium breeding rate and CO2 adsorption capacity are closely related to lithium content and microstructure. Since high sintering temperatures result in grain coarsening and lithium sublimation, it is a great challenge to prepare Li4SiO4 ceramics with a satisfactory mechanical strength at low sintering temperature. In this work, mesoporous silica was used as Si source to prepare Li4SiO4 spheres. The mesoporous structure might provide more reaction sites for lithium ions, thereby facilitating the reaction between LiOH and mesoporous silica. The sintering temperature of Li4SiO4 spheres was greatly reduced by using mesoporous silica as Si source. The Li4SiO4 spheres with a homogenous fine-grained microstructure (the average grain size of 2.2 μm) and high crushing load (41.65N) could be obtained at 675°C.
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spelling doaj.art-2d3d0c657f1541939c5137c58a3ce8232023-04-21T11:06:41ZengUniversity of Novi SadProcessing and Application of Ceramics1820-61312406-10342023-03-01171556010.2298/PAC2301055GLow-temperature sintering of Li4SiO4 spheres with high crushing load using mesoporous silica as Si sourcesGong Yichao0Chen Xin1Kang Kun2Wang Yuefei3Na Qingze4Ren Shuai5Zhang Guojun6School of Materials Science and Engineering, Xi’an University of Technology, Xi’an, ChinaSchool of Materials Science and Engineering, Xi’an University of Technology, Xi’an, ChinaSchool of Materials Science and Engineering, Xi’an University of Technology, Xi’an, ChinaSchool of Materials Science and Engineering, Xi’an University of Technology, Xi’an, ChinaSchool of Materials Science and Engineering, Xi’an University of Technology, Xi’an, ChinaSchool of Materials Science and Engineering, Xi’an University of Technology, Xi’an, ChinaSchool of Materials Science and Engineering, Xi’an University of Technology, Xi’an, ChinaLi4SiO4 has been widely studied as tritium breeder and high temperature CO2 capture material. Tritium breeding rate and CO2 adsorption capacity are closely related to lithium content and microstructure. Since high sintering temperatures result in grain coarsening and lithium sublimation, it is a great challenge to prepare Li4SiO4 ceramics with a satisfactory mechanical strength at low sintering temperature. In this work, mesoporous silica was used as Si source to prepare Li4SiO4 spheres. The mesoporous structure might provide more reaction sites for lithium ions, thereby facilitating the reaction between LiOH and mesoporous silica. The sintering temperature of Li4SiO4 spheres was greatly reduced by using mesoporous silica as Si source. The Li4SiO4 spheres with a homogenous fine-grained microstructure (the average grain size of 2.2 μm) and high crushing load (41.65N) could be obtained at 675°C.https://www.doiserbia.nb.rs/img/doi/1820-6131/2023/1820-61312301055G.pdfli4sio4 pelletslow-temperature sinteringmesoporous silicacrushing load
spellingShingle Gong Yichao
Chen Xin
Kang Kun
Wang Yuefei
Na Qingze
Ren Shuai
Zhang Guojun
Low-temperature sintering of Li4SiO4 spheres with high crushing load using mesoporous silica as Si sources
Processing and Application of Ceramics
li4sio4 pellets
low-temperature sintering
mesoporous silica
crushing load
title Low-temperature sintering of Li4SiO4 spheres with high crushing load using mesoporous silica as Si sources
title_full Low-temperature sintering of Li4SiO4 spheres with high crushing load using mesoporous silica as Si sources
title_fullStr Low-temperature sintering of Li4SiO4 spheres with high crushing load using mesoporous silica as Si sources
title_full_unstemmed Low-temperature sintering of Li4SiO4 spheres with high crushing load using mesoporous silica as Si sources
title_short Low-temperature sintering of Li4SiO4 spheres with high crushing load using mesoporous silica as Si sources
title_sort low temperature sintering of li4sio4 spheres with high crushing load using mesoporous silica as si sources
topic li4sio4 pellets
low-temperature sintering
mesoporous silica
crushing load
url https://www.doiserbia.nb.rs/img/doi/1820-6131/2023/1820-61312301055G.pdf
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