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RF Thermal Plasma Synthesis of Ultrafine ZrB(2)-ZrC Composite Powders

Ultrafine ZrB(2)-ZrC composite powders were synthesized via a radiofrequency (RF) thermal plasma process. Numerical simulation and thermodynamic analysis were conducted to predict the synthesis process, and experimental work was performed accordingly to demonstrate its feasibility. The as-prepared s...

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Autores principales: Bai, Liuyang, Yuan, Fangli, Fang, Zheng, Wang, Qi, Ouyang, Yuge, Jin, Huacheng, He, Jiaping, Liu, Wenfu, Wang, Yinling
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2020
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7764149/
https://www.ncbi.nlm.nih.gov/pubmed/33322726
http://dx.doi.org/10.3390/nano10122497
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author Bai, Liuyang
Yuan, Fangli
Fang, Zheng
Wang, Qi
Ouyang, Yuge
Jin, Huacheng
He, Jiaping
Liu, Wenfu
Wang, Yinling
author_facet Bai, Liuyang
Yuan, Fangli
Fang, Zheng
Wang, Qi
Ouyang, Yuge
Jin, Huacheng
He, Jiaping
Liu, Wenfu
Wang, Yinling
author_sort Bai, Liuyang
collection PubMed
description Ultrafine ZrB(2)-ZrC composite powders were synthesized via a radiofrequency (RF) thermal plasma process. Numerical simulation and thermodynamic analysis were conducted to predict the synthesis process, and experimental work was performed accordingly to demonstrate its feasibility. The as-prepared samples were characterized by XRD, FESEM, particle size analyzer, nitrogen/oxygen analyzer, Hall flowmeter, and the Brunner-Emmet-Teller (BET) measurements. The thermodynamic analysis indicated that ZrB(2) was preferentially generated, rather than ZrC, and numerical simulation revealed that the solid raw materials could disperse well in the gaseous reactants, and experimental work showed that free carbon particles were easily removed from the products and the elements of Zr, B, C, and O exhibited a uniform distribution. Finally, ZrB(2)-ZrC composite powders with a particle size of about 100 nm were obtained, the surface area of which was 32.15 m(2)/g and the apparent density was 0.57 g/cm(3).
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spelling pubmed-77641492020-12-27 RF Thermal Plasma Synthesis of Ultrafine ZrB(2)-ZrC Composite Powders Bai, Liuyang Yuan, Fangli Fang, Zheng Wang, Qi Ouyang, Yuge Jin, Huacheng He, Jiaping Liu, Wenfu Wang, Yinling Nanomaterials (Basel) Article Ultrafine ZrB(2)-ZrC composite powders were synthesized via a radiofrequency (RF) thermal plasma process. Numerical simulation and thermodynamic analysis were conducted to predict the synthesis process, and experimental work was performed accordingly to demonstrate its feasibility. The as-prepared samples were characterized by XRD, FESEM, particle size analyzer, nitrogen/oxygen analyzer, Hall flowmeter, and the Brunner-Emmet-Teller (BET) measurements. The thermodynamic analysis indicated that ZrB(2) was preferentially generated, rather than ZrC, and numerical simulation revealed that the solid raw materials could disperse well in the gaseous reactants, and experimental work showed that free carbon particles were easily removed from the products and the elements of Zr, B, C, and O exhibited a uniform distribution. Finally, ZrB(2)-ZrC composite powders with a particle size of about 100 nm were obtained, the surface area of which was 32.15 m(2)/g and the apparent density was 0.57 g/cm(3). MDPI 2020-12-12 /pmc/articles/PMC7764149/ /pubmed/33322726 http://dx.doi.org/10.3390/nano10122497 Text en © 2020 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Bai, Liuyang
Yuan, Fangli
Fang, Zheng
Wang, Qi
Ouyang, Yuge
Jin, Huacheng
He, Jiaping
Liu, Wenfu
Wang, Yinling
RF Thermal Plasma Synthesis of Ultrafine ZrB(2)-ZrC Composite Powders
title RF Thermal Plasma Synthesis of Ultrafine ZrB(2)-ZrC Composite Powders
title_full RF Thermal Plasma Synthesis of Ultrafine ZrB(2)-ZrC Composite Powders
title_fullStr RF Thermal Plasma Synthesis of Ultrafine ZrB(2)-ZrC Composite Powders
title_full_unstemmed RF Thermal Plasma Synthesis of Ultrafine ZrB(2)-ZrC Composite Powders
title_short RF Thermal Plasma Synthesis of Ultrafine ZrB(2)-ZrC Composite Powders
title_sort rf thermal plasma synthesis of ultrafine zrb(2)-zrc composite powders
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7764149/
https://www.ncbi.nlm.nih.gov/pubmed/33322726
http://dx.doi.org/10.3390/nano10122497
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