Injection molding of submicrometer zirconia: blend formulation and rheology
Identifieur interne : 004166 ( Main/Exploration ); précédent : 004165; suivant : 004167Injection molding of submicrometer zirconia: blend formulation and rheology
Auteurs : François Allaire [Canada] ; Basil R. Marple [Canada] ; Jean Boulanger [Canada]Source :
- Ceramics International [ 0272-8842 ] ; 1994.
Abstract
The formulation and rheological properties of feedstocks containing a submicron-sized zirconia powder were studied. The major components of the binder phase were polystyrene and corn oil, present in a ratio of 2:3 by volume. It was shown that cold blending of the constituents followed by mixing with a twin-screw extruder produced more suitable feedstocks than those for which the blending step was performed at 220°C. The hot-blended feedstocks had higher viscosities, were inhomogeneous and exhibited binder separation under an applied shear stress. Stearic acid additions were effective at reducing the viscosities of the feedstocks but this effect decreased with increasing temperature and was not a significant factor at 200°C. Feedstocks containing 57 vol% zirconia were found to have a viscosity greater than 1000 Pa s at 200°C and exhibited a higher sensitivity to changes in temperature than feedstocks containing lower concentrations of zirconia. For the binder system being used, a feedstock containing 53 vol% zirconia appeared most suitable for injection molding in terms of maximizing the solids loading while maintaining an acceptable rheological performance.
Url:
DOI: 10.1016/0272-8842(94)90049-3
Affiliations:
Links toward previous steps (curation, corpus...)
- to stream Istex, to step Corpus: 000D76
- to stream Istex, to step Curation: 000D76
- to stream Istex, to step Checkpoint: 001A92
- to stream Main, to step Merge: 004922
- to stream Main, to step Curation: 004166
Le document en format XML
<record><TEI wicri:istexFullTextTei="biblStruct"><teiHeader><fileDesc><titleStmt><title>Injection molding of submicrometer zirconia: blend formulation and rheology</title>
<author><name sortKey="Allaire, Francois" sort="Allaire, Francois" uniqKey="Allaire F" first="François" last="Allaire">François Allaire</name>
</author>
<author><name sortKey="Marple, Basil R" sort="Marple, Basil R" uniqKey="Marple B" first="Basil R." last="Marple">Basil R. Marple</name>
</author>
<author><name sortKey="Boulanger, Jean" sort="Boulanger, Jean" uniqKey="Boulanger J" first="Jean" last="Boulanger">Jean Boulanger</name>
</author>
</titleStmt>
<publicationStmt><idno type="wicri:source">ISTEX</idno>
<idno type="RBID">ISTEX:8D814F694C8EAA2A40B7F4231FB3BE657257C728</idno>
<date when="1994" year="1994">1994</date>
<idno type="doi">10.1016/0272-8842(94)90049-3</idno>
<idno type="url">https://api-v5.istex.fr/document/8D814F694C8EAA2A40B7F4231FB3BE657257C728/fulltext/pdf</idno>
<idno type="wicri:Area/Istex/Corpus">000D76</idno>
<idno type="wicri:explorRef" wicri:stream="Istex" wicri:step="Corpus" wicri:corpus="ISTEX">000D76</idno>
<idno type="wicri:Area/Istex/Curation">000D76</idno>
<idno type="wicri:Area/Istex/Checkpoint">001A92</idno>
<idno type="wicri:explorRef" wicri:stream="Istex" wicri:step="Checkpoint">001A92</idno>
<idno type="wicri:doubleKey">0272-8842:1994:Allaire F:injection:molding:of</idno>
<idno type="wicri:Area/Main/Merge">004922</idno>
<idno type="wicri:Area/Main/Curation">004166</idno>
<idno type="wicri:Area/Main/Exploration">004166</idno>
</publicationStmt>
<sourceDesc><biblStruct><analytic><title level="a">Injection molding of submicrometer zirconia: blend formulation and rheology</title>
<author><name sortKey="Allaire, Francois" sort="Allaire, Francois" uniqKey="Allaire F" first="François" last="Allaire">François Allaire</name>
<affiliation wicri:level="1"><country>Canada</country>
<wicri:regionArea>Industrial Materials Institute, National Research Council of Canada, 75 de Mortagne Blvd., Boucherville, Quebec</wicri:regionArea>
<wicri:noRegion>Quebec</wicri:noRegion>
</affiliation>
</author>
<author><name sortKey="Marple, Basil R" sort="Marple, Basil R" uniqKey="Marple B" first="Basil R." last="Marple">Basil R. Marple</name>
<affiliation wicri:level="1"><country>Canada</country>
<wicri:regionArea>Industrial Materials Institute, National Research Council of Canada, 75 de Mortagne Blvd., Boucherville, Quebec</wicri:regionArea>
<wicri:noRegion>Quebec</wicri:noRegion>
</affiliation>
</author>
<author><name sortKey="Boulanger, Jean" sort="Boulanger, Jean" uniqKey="Boulanger J" first="Jean" last="Boulanger">Jean Boulanger</name>
<affiliation wicri:level="1"><country>Canada</country>
<wicri:regionArea>Industrial Materials Institute, National Research Council of Canada, 75 de Mortagne Blvd., Boucherville, Quebec</wicri:regionArea>
<wicri:noRegion>Quebec</wicri:noRegion>
</affiliation>
</author>
</analytic>
<monogr></monogr>
<series><title level="j">Ceramics International</title>
<title level="j" type="abbrev">CERI</title>
<idno type="ISSN">0272-8842</idno>
<imprint><publisher>ELSEVIER</publisher>
<date type="published" when="1994">1994</date>
<biblScope unit="volume">20</biblScope>
<biblScope unit="issue">5</biblScope>
<biblScope unit="page" from="319">319</biblScope>
<biblScope unit="page" to="325">325</biblScope>
</imprint>
<idno type="ISSN">0272-8842</idno>
</series>
</biblStruct>
</sourceDesc>
<seriesStmt><idno type="ISSN">0272-8842</idno>
</seriesStmt>
</fileDesc>
<profileDesc><textClass></textClass>
<langUsage><language ident="en">en</language>
</langUsage>
</profileDesc>
</teiHeader>
<front><div type="abstract" xml:lang="en">The formulation and rheological properties of feedstocks containing a submicron-sized zirconia powder were studied. The major components of the binder phase were polystyrene and corn oil, present in a ratio of 2:3 by volume. It was shown that cold blending of the constituents followed by mixing with a twin-screw extruder produced more suitable feedstocks than those for which the blending step was performed at 220°C. The hot-blended feedstocks had higher viscosities, were inhomogeneous and exhibited binder separation under an applied shear stress. Stearic acid additions were effective at reducing the viscosities of the feedstocks but this effect decreased with increasing temperature and was not a significant factor at 200°C. Feedstocks containing 57 vol% zirconia were found to have a viscosity greater than 1000 Pa s at 200°C and exhibited a higher sensitivity to changes in temperature than feedstocks containing lower concentrations of zirconia. For the binder system being used, a feedstock containing 53 vol% zirconia appeared most suitable for injection molding in terms of maximizing the solids loading while maintaining an acceptable rheological performance.</div>
</front>
</TEI>
<affiliations><list><country><li>Canada</li>
</country>
</list>
<tree><country name="Canada"><noRegion><name sortKey="Allaire, Francois" sort="Allaire, Francois" uniqKey="Allaire F" first="François" last="Allaire">François Allaire</name>
</noRegion>
<name sortKey="Boulanger, Jean" sort="Boulanger, Jean" uniqKey="Boulanger J" first="Jean" last="Boulanger">Jean Boulanger</name>
<name sortKey="Marple, Basil R" sort="Marple, Basil R" uniqKey="Marple B" first="Basil R." last="Marple">Basil R. Marple</name>
</country>
</tree>
</affiliations>
</record>
Pour manipuler ce document sous Unix (Dilib)
EXPLOR_STEP=$WICRI_ROOT/Wicri/Canada/explor/ParkinsonCanadaV1/Data/Main/Exploration
HfdSelect -h $EXPLOR_STEP/biblio.hfd -nk 004166 | SxmlIndent | more
Ou
HfdSelect -h $EXPLOR_AREA/Data/Main/Exploration/biblio.hfd -nk 004166 | SxmlIndent | more
Pour mettre un lien sur cette page dans le réseau Wicri
{{Explor lien |wiki= Wicri/Canada |area= ParkinsonCanadaV1 |flux= Main |étape= Exploration |type= RBID |clé= ISTEX:8D814F694C8EAA2A40B7F4231FB3BE657257C728 |texte= Injection molding of submicrometer zirconia: blend formulation and rheology }}
This area was generated with Dilib version V0.6.29. |