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Title: Deconvolution of mass gain and mass loss mechanisms during carbothermic reduction to nitridization reactions in the zirconium system through thermogravimetric analysis

Abstract

A novel approach was used to understand the effects of processing conditions on the conversion of zirconium dioxide to zirconium carbonitride using a carbothermic reduction to nitridation process. The conversion process was studied through the use of thermogravimetric analysis, X-ray diffraction (XRD), and scanning electron microscopy, resulting in an understanding of the nature and progression of conversion. The rate of mass change as measured through thermogravimetric analysis was plotted as a function of reaction progression, guiding the use of XRD in further understanding the conversion process. This approach was then used to characterize the important effect of initial compact morphology on conversion. Coupled analysis techniques allow for advancement of a number of hypotheses regarding the rate-limiting factors along the various steps in the carbothermic reduction to nitridation process. These results demonstrate the value of the proposed approach to aid in deconstruction of competing reaction mechanisms as necessary to understand the system studied here or other systems of scientific and industrial relevance.

Authors:
ORCiD logo [1]; ORCiD logo [1]
  1. Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
Publication Date:
Research Org.:
Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1492657
Report Number(s):
LA-UR-15-24882
Journal ID: ISSN 0002-7820
Grant/Contract Number:  
89233218CNA000001
Resource Type:
Accepted Manuscript
Journal Name:
Journal of the American Ceramic Society
Additional Journal Information:
Journal Volume: 99; Journal Issue: 5; Journal ID: ISSN 0002-7820
Publisher:
American Ceramic Society
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; Material Science; Carbothermic reduction nitride zirconium

Citation Formats

Parkison, Adam J., and Nelson, Andrew Thomas. Deconvolution of mass gain and mass loss mechanisms during carbothermic reduction to nitridization reactions in the zirconium system through thermogravimetric analysis. United States: N. p., 2016. Web. doi:10.1111/jace.14156.
Parkison, Adam J., & Nelson, Andrew Thomas. Deconvolution of mass gain and mass loss mechanisms during carbothermic reduction to nitridization reactions in the zirconium system through thermogravimetric analysis. United States. doi:10.1111/jace.14156.
Parkison, Adam J., and Nelson, Andrew Thomas. Mon . "Deconvolution of mass gain and mass loss mechanisms during carbothermic reduction to nitridization reactions in the zirconium system through thermogravimetric analysis". United States. doi:10.1111/jace.14156. https://www.osti.gov/servlets/purl/1492657.
@article{osti_1492657,
title = {Deconvolution of mass gain and mass loss mechanisms during carbothermic reduction to nitridization reactions in the zirconium system through thermogravimetric analysis},
author = {Parkison, Adam J. and Nelson, Andrew Thomas},
abstractNote = {A novel approach was used to understand the effects of processing conditions on the conversion of zirconium dioxide to zirconium carbonitride using a carbothermic reduction to nitridation process. The conversion process was studied through the use of thermogravimetric analysis, X-ray diffraction (XRD), and scanning electron microscopy, resulting in an understanding of the nature and progression of conversion. The rate of mass change as measured through thermogravimetric analysis was plotted as a function of reaction progression, guiding the use of XRD in further understanding the conversion process. This approach was then used to characterize the important effect of initial compact morphology on conversion. Coupled analysis techniques allow for advancement of a number of hypotheses regarding the rate-limiting factors along the various steps in the carbothermic reduction to nitridation process. These results demonstrate the value of the proposed approach to aid in deconstruction of competing reaction mechanisms as necessary to understand the system studied here or other systems of scientific and industrial relevance.},
doi = {10.1111/jace.14156},
journal = {Journal of the American Ceramic Society},
number = 5,
volume = 99,
place = {United States},
year = {2016},
month = {2}
}

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Cited by: 1 work
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Figures / Tables:

Table 1 Table 1: Relative intensity for the peaks shown in Figure 11.

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Works referenced in this record:

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