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Title: Synthesis of TiB 2 from a carbon‐coated precursors method

Abstract

Abstract This article deals with the synthesis of TiB 2 from carbon‐coated TiO 2 precursors with the addition of B 4 C. The carbon‐coated precursors method alters the reaction process, compared with the conventional mixing of reactants, to produce high‐quality TiB 2 powders. The produced powders have a single phase, a submicron particle size (~0.3 to 0.8 μm), regular shape, loose agglomeration, and low level of contaminations (less than 0.5 wt% carbon and 0.6 wt% oxygen). The formation mechanism proposed is based on experimental results and thermodynamic evaluations. For comparison, the powders obtained from the mixture of reactants show higher agglomeration, a large particle size (>1 μm), high level of contaminations (0.7 wt% carbon and 1.1 wt% oxygen), and difficulty to control the reaction process (formation of Ti BO 3 and Ti 2 O 3 as the intermediate phases). The synthesized powders from the precursors method can be hot pressed to a relative density of ~94.5% with the formation of platelike grains at 1800°C under a pressure of 35 MPa without additives.

Authors:
 [1];  [2]
  1. Department of Mechanical Engineering and Energy Processes Southern Illinois University Carbondale Illinois, Department of Materials Science and Engineering University of Maryland Energy Research Center University of Maryland College Park College Park, Maryland 20742
  2. Department of Mechanical Engineering and Energy Processes Southern Illinois University Carbondale Illinois
Publication Date:
Sponsoring Org.:
USDOE
OSTI Identifier:
1401292
Grant/Contract Number:  
DE‐FE0008864
Resource Type:
Publisher's Accepted Manuscript
Journal Name:
Journal of the American Ceramic Society
Additional Journal Information:
Journal Name: Journal of the American Ceramic Society Journal Volume: 100 Journal Issue: 6; Journal ID: ISSN 0002-7820
Publisher:
Wiley-Blackwell
Country of Publication:
United States
Language:
English

Citation Formats

Fu, Zhezhen, and Koc, Rasit. Synthesis of TiB 2 from a carbon‐coated precursors method. United States: N. p., 2017. Web. doi:10.1111/jace.14794.
Fu, Zhezhen, & Koc, Rasit. Synthesis of TiB 2 from a carbon‐coated precursors method. United States. https://doi.org/10.1111/jace.14794
Fu, Zhezhen, and Koc, Rasit. Wed . "Synthesis of TiB 2 from a carbon‐coated precursors method". United States. https://doi.org/10.1111/jace.14794.
@article{osti_1401292,
title = {Synthesis of TiB 2 from a carbon‐coated precursors method},
author = {Fu, Zhezhen and Koc, Rasit},
abstractNote = {Abstract This article deals with the synthesis of TiB 2 from carbon‐coated TiO 2 precursors with the addition of B 4 C. The carbon‐coated precursors method alters the reaction process, compared with the conventional mixing of reactants, to produce high‐quality TiB 2 powders. The produced powders have a single phase, a submicron particle size (~0.3 to 0.8 μm), regular shape, loose agglomeration, and low level of contaminations (less than 0.5 wt% carbon and 0.6 wt% oxygen). The formation mechanism proposed is based on experimental results and thermodynamic evaluations. For comparison, the powders obtained from the mixture of reactants show higher agglomeration, a large particle size (>1 μm), high level of contaminations (0.7 wt% carbon and 1.1 wt% oxygen), and difficulty to control the reaction process (formation of Ti BO 3 and Ti 2 O 3 as the intermediate phases). The synthesized powders from the precursors method can be hot pressed to a relative density of ~94.5% with the formation of platelike grains at 1800°C under a pressure of 35 MPa without additives.},
doi = {10.1111/jace.14794},
journal = {Journal of the American Ceramic Society},
number = 6,
volume = 100,
place = {United States},
year = {Wed Mar 29 00:00:00 EDT 2017},
month = {Wed Mar 29 00:00:00 EDT 2017}
}

Journal Article:
Free Publicly Available Full Text
Publisher's Version of Record
https://doi.org/10.1111/jace.14794

Citation Metrics:
Cited by: 24 works
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