Crystallization Kinetics of a Solid Oxide Fuel Cell Seal Glass by Differential Thermal Analysis

Crystallization Kinetics of a Solid Oxide Fuel Cell Seal Glass by Differential Thermal Analysis

Crystallization kinetics of a barium calcium aluminosilicate glass (BCAS), a sealant material for planar solid oxide fuel cells, have been investigated by differential thermal analysis (DTA). From variation of DTA peak maximum temperature with heating rate, the activation energy for glass crystalliz...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Hauptverfasser: Bansal, Narottam P., Gamble, Eleanor A.
Format: Report
Sprache:eng
Schlagworte:
Nonmetallic Materials
Online-Zugang:Volltext bestellen
Tags: Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
container_end_page
container_issue
container_start_page
container_title
container_volume
creator Bansal, Narottam P.
Gamble, Eleanor A.
description Crystallization kinetics of a barium calcium aluminosilicate glass (BCAS), a sealant material for planar solid oxide fuel cells, have been investigated by differential thermal analysis (DTA). From variation of DTA peak maximum temperature with heating rate, the activation energy for glass crystallization was calculated to be 259 kJ/mol. Development of crystalline phases on thermal treatments of the glass at various temperatures has been followed by powder x-ray diffraction. Microstructure and chemical composition of the crystalline phases were investigated by scanning electron microscopy and energy dispersive spectroscopic (EDS) analysis. BaSiO3 and hexacelsian (BaAl2Si2O8) were the primary crystalline phases whereas monoclinic celsian (BaAl2Si2O8) and (Ba(x), Ca(y))SiO4 were also detected as minor phases. Needle-shaped BaSiO3 crystals are formed first, followed by the formation of other phases at longer times of heat treatments. The glass does not fully crystallize even after long term heat treatments at 750 to 900 C.
format Report
fullrecord <record><control><sourceid>nasa_CYI</sourceid><recordid>TN_cdi_nasa_ntrs_20050061013</recordid><sourceformat>XML</sourceformat><sourcesystem>PC</sourcesystem><sourcerecordid>20050061013</sourcerecordid><originalsourceid>FETCH-nasa_ntrs_200500610133</originalsourceid><addsrcrecordid>eNqFybEKwjAQgOEsDqK-gcO9gJBadC_RKjg4tHs47QUPzgRyEaxPbwd3pw_-f268y6MWFOEPFk4RLhyp8F0hBUDokvAA1zcPBO2LBByJQEcocBJUhdsIBw6BMsXCU-0flJ-TTUQZlXVpZgFFafVzYdbtsXfnTURFH0tWv7V2Z-2-slVd_9lfgIE3rA</addsrcrecordid><sourcetype>Publisher</sourcetype><iscdi>true</iscdi><recordtype>report</recordtype></control><display><type>report</type><title>Crystallization Kinetics of a Solid Oxide Fuel Cell Seal Glass by Differential Thermal Analysis</title><source>NASA Technical Reports Server</source><creator>Bansal, Narottam P. ; Gamble, Eleanor A.</creator><creatorcontrib>Bansal, Narottam P. ; Gamble, Eleanor A.</creatorcontrib><description>Crystallization kinetics of a barium calcium aluminosilicate glass (BCAS), a sealant material for planar solid oxide fuel cells, have been investigated by differential thermal analysis (DTA). From variation of DTA peak maximum temperature with heating rate, the activation energy for glass crystallization was calculated to be 259 kJ/mol. Development of crystalline phases on thermal treatments of the glass at various temperatures has been followed by powder x-ray diffraction. Microstructure and chemical composition of the crystalline phases were investigated by scanning electron microscopy and energy dispersive spectroscopic (EDS) analysis. BaSiO3 and hexacelsian (BaAl2Si2O8) were the primary crystalline phases whereas monoclinic celsian (BaAl2Si2O8) and (Ba(x), Ca(y))SiO4 were also detected as minor phases. Needle-shaped BaSiO3 crystals are formed first, followed by the formation of other phases at longer times of heat treatments. The glass does not fully crystallize even after long term heat treatments at 750 to 900 C.</description><language>eng</language><publisher>Glenn Research Center</publisher><subject>Nonmetallic Materials</subject><creationdate>2005</creationdate><rights>Copyright Determination: GOV_PUBLIC_USE_PERMITTED</rights><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>777,797</link.rule.ids><linktorsrc>$$Uhttps://ntrs.nasa.gov/citations/20050061013$$EView_record_in_NASA$$FView_record_in_$$GNASA$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>Bansal, Narottam P.</creatorcontrib><creatorcontrib>Gamble, Eleanor A.</creatorcontrib><title>Crystallization Kinetics of a Solid Oxide Fuel Cell Seal Glass by Differential Thermal Analysis</title><description>Crystallization kinetics of a barium calcium aluminosilicate glass (BCAS), a sealant material for planar solid oxide fuel cells, have been investigated by differential thermal analysis (DTA). From variation of DTA peak maximum temperature with heating rate, the activation energy for glass crystallization was calculated to be 259 kJ/mol. Development of crystalline phases on thermal treatments of the glass at various temperatures has been followed by powder x-ray diffraction. Microstructure and chemical composition of the crystalline phases were investigated by scanning electron microscopy and energy dispersive spectroscopic (EDS) analysis. BaSiO3 and hexacelsian (BaAl2Si2O8) were the primary crystalline phases whereas monoclinic celsian (BaAl2Si2O8) and (Ba(x), Ca(y))SiO4 were also detected as minor phases. Needle-shaped BaSiO3 crystals are formed first, followed by the formation of other phases at longer times of heat treatments. The glass does not fully crystallize even after long term heat treatments at 750 to 900 C.</description><subject>Nonmetallic Materials</subject><fulltext>true</fulltext><rsrctype>report</rsrctype><creationdate>2005</creationdate><recordtype>report</recordtype><sourceid>CYI</sourceid><recordid>eNqFybEKwjAQgOEsDqK-gcO9gJBadC_RKjg4tHs47QUPzgRyEaxPbwd3pw_-f268y6MWFOEPFk4RLhyp8F0hBUDokvAA1zcPBO2LBByJQEcocBJUhdsIBw6BMsXCU-0flJ-TTUQZlXVpZgFFafVzYdbtsXfnTURFH0tWv7V2Z-2-slVd_9lfgIE3rA</recordid><startdate>20050101</startdate><enddate>20050101</enddate><creator>Bansal, Narottam P.</creator><creator>Gamble, Eleanor A.</creator><scope>CYE</scope><scope>CYI</scope></search><sort><creationdate>20050101</creationdate><title>Crystallization Kinetics of a Solid Oxide Fuel Cell Seal Glass by Differential Thermal Analysis</title><author>Bansal, Narottam P. ; Gamble, Eleanor A.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-nasa_ntrs_200500610133</frbrgroupid><rsrctype>reports</rsrctype><prefilter>reports</prefilter><language>eng</language><creationdate>2005</creationdate><topic>Nonmetallic Materials</topic><toplevel>online_resources</toplevel><creatorcontrib>Bansal, Narottam P.</creatorcontrib><creatorcontrib>Gamble, Eleanor A.</creatorcontrib><collection>NASA Scientific and Technical Information</collection><collection>NASA Technical Reports Server</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>Bansal, Narottam P.</au><au>Gamble, Eleanor A.</au><format>book</format><genre>unknown</genre><ristype>RPRT</ristype><btitle>Crystallization Kinetics of a Solid Oxide Fuel Cell Seal Glass by Differential Thermal Analysis</btitle><date>2005-01-01</date><risdate>2005</risdate><abstract>Crystallization kinetics of a barium calcium aluminosilicate glass (BCAS), a sealant material for planar solid oxide fuel cells, have been investigated by differential thermal analysis (DTA). From variation of DTA peak maximum temperature with heating rate, the activation energy for glass crystallization was calculated to be 259 kJ/mol. Development of crystalline phases on thermal treatments of the glass at various temperatures has been followed by powder x-ray diffraction. Microstructure and chemical composition of the crystalline phases were investigated by scanning electron microscopy and energy dispersive spectroscopic (EDS) analysis. BaSiO3 and hexacelsian (BaAl2Si2O8) were the primary crystalline phases whereas monoclinic celsian (BaAl2Si2O8) and (Ba(x), Ca(y))SiO4 were also detected as minor phases. Needle-shaped BaSiO3 crystals are formed first, followed by the formation of other phases at longer times of heat treatments. The glass does not fully crystallize even after long term heat treatments at 750 to 900 C.</abstract><cop>Glenn Research Center</cop><oa>free_for_read</oa></addata></record>
fulltext fulltext_linktorsrc
identifier
ispartof
issn
language eng
recordid cdi_nasa_ntrs_20050061013
source NASA Technical Reports Server
subjects Nonmetallic Materials
title Crystallization Kinetics of a Solid Oxide Fuel Cell Seal Glass by Differential Thermal Analysis
url https://sfx.bib-bvb.de/sfx_tum?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&ctx_tim=2025-01-17T21%3A05%3A46IST&url_ver=Z39.88-2004&url_ctx_fmt=infofi/fmt:kev:mtx:ctx&rfr_id=info:sid/primo.exlibrisgroup.com:primo3-Article-nasa_CYI&rft_val_fmt=info:ofi/fmt:kev:mtx:book&rft.genre=unknown&rft.btitle=Crystallization%20Kinetics%20of%20a%20Solid%20Oxide%20Fuel%20Cell%20Seal%20Glass%20by%20Differential%20Thermal%20Analysis&rft.au=Bansal,%20Narottam%20P.&rft.date=2005-01-01&rft_id=info:doi/&rft_dat=%3Cnasa_CYI%3E20050061013%3C/nasa_CYI%3E%3Curl%3E%3C/url%3E&disable_directlink=true&sfx.directlink=off&sfx.report_link=0&rft_id=info:oai/&rft_id=info:pmid/&rfr_iscdi=true