NONMAGNETIC CERAMIC FOR MAGNETIC HEAD AND PRODUCTION THEREOF

PURPOSE: To decrease a void amt. without HIP treatment and to improve reliability with good workability and low cost by forming a ceramic material essentially comprising TiO2 and BaO and having two phases of TiO2 phase and BaTi5 O11 phase as the main crystalline phases. CONSTITUTION: BaCO3 and TiO2...

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Hauptverfasser:	OOTSUBO TAKASHIRO, YAMAGUCHI SHINICHI, KONDO TERUO
Format:	Patent
Sprache:	eng
Schlagworte:	ARTIFICIAL STONE CEMENTS CERAMICS CHEMISTRY COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDINGMATERIALS CONCRETE INFORMATION STORAGE INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORDCARRIER AND TRANSDUCER LIME, MAGNESIA METALLURGY PHYSICS REFRACTORIES SLAG TREATMENT OF NATURAL STONE
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creator	OOTSUBO TAKASHIRO YAMAGUCHI SHINICHI KONDO TERUO
description	PURPOSE: To decrease a void amt. without HIP treatment and to improve reliability with good workability and low cost by forming a ceramic material essentially comprising TiO2 and BaO and having two phases of TiO2 phase and BaTi5 O11 phase as the main crystalline phases. CONSTITUTION: BaCO3 and TiO2 are mixed to obtain 9.7 to 9.8×10 / deg.C coefft. of thermal expansion, into which Al2 O3 and SiO2 .ZrO2 are compounded to obtain a specified compsn. and ion exchanged water is added. The mixture is kneaded in a beads mill and molded in a wet state into a square plate under 0.8Ton/cm pressure. The molded body is dried and fired at 1140-1180 deg.C to obtain a sintered compact having
format	Patent
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CONSTITUTION: BaCO3 and TiO2 are mixed to obtain 9.7 to 9.8×10<-6> / deg.C coefft. of thermal expansion, into which Al2 O3 and SiO2 .ZrO2 are compounded to obtain a specified compsn. and ion exchanged water is added. The mixture is kneaded in a beads mill and molded in a wet state into a square plate under 0.8Ton/cm pressure. The molded body is dried and fired at 1140-1180 deg.C to obtain a sintered compact having <=850kg/mm Vickers hardness. This sintered compact is used to obtain such a nonmagnetic ceramic material for a magnetic head that contains 0.07-3wt.% Al2 O3 , 0.05-0.1wt.% SiO2 and 0.3-1.0wt.% ZrO2 to 100wt.% of TiO2 and BaO as the main component and has <=0.1% void rate in the plane and <=2μm max. void diameter.</description><edition>6</edition><language>eng</language><subject>ARTIFICIAL STONE ; CEMENTS ; CERAMICS ; CHEMISTRY ; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDINGMATERIALS ; CONCRETE ; INFORMATION STORAGE ; INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORDCARRIER AND TRANSDUCER ; LIME, MAGNESIA ; METALLURGY ; PHYSICS ; REFRACTORIES ; SLAG ; TREATMENT OF NATURAL STONE</subject><creationdate>1996</creationdate><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=19960813&DB=EPODOC&CC=JP&NR=H08208326A$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,780,885,25564,76547</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=19960813&DB=EPODOC&CC=JP&NR=H08208326A$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>OOTSUBO TAKASHIRO</creatorcontrib><creatorcontrib>YAMAGUCHI SHINICHI</creatorcontrib><creatorcontrib>KONDO TERUO</creatorcontrib><title>NONMAGNETIC CERAMIC FOR MAGNETIC HEAD AND PRODUCTION THEREOF</title><description>PURPOSE: To decrease a void amt. without HIP treatment and to improve reliability with good workability and low cost by forming a ceramic material essentially comprising TiO2 and BaO and having two phases of TiO2 phase and BaTi5 O11 phase as the main crystalline phases. CONSTITUTION: BaCO3 and TiO2 are mixed to obtain 9.7 to 9.8×10<-6> / deg.C coefft. of thermal expansion, into which Al2 O3 and SiO2 .ZrO2 are compounded to obtain a specified compsn. and ion exchanged water is added. The mixture is kneaded in a beads mill and molded in a wet state into a square plate under 0.8Ton/cm pressure. The molded body is dried and fired at 1140-1180 deg.C to obtain a sintered compact having <=850kg/mm Vickers hardness. This sintered compact is used to obtain such a nonmagnetic ceramic material for a magnetic head that contains 0.07-3wt.% Al2 O3 , 0.05-0.1wt.% SiO2 and 0.3-1.0wt.% ZrO2 to 100wt.% of TiO2 and BaO as the main component and has <=0.1% void rate in the plane and <=2μm max. void diameter.</description><subject>ARTIFICIAL STONE</subject><subject>CEMENTS</subject><subject>CERAMICS</subject><subject>CHEMISTRY</subject><subject>COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDINGMATERIALS</subject><subject>CONCRETE</subject><subject>INFORMATION STORAGE</subject><subject>INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORDCARRIER AND TRANSDUCER</subject><subject>LIME, MAGNESIA</subject><subject>METALLURGY</subject><subject>PHYSICS</subject><subject>REFRACTORIES</subject><subject>SLAG</subject><subject>TREATMENT OF NATURAL STONE</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>1996</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNrjZLDx8_fzdXT3cw3xdFZwdg1y9AXSbv5BCnBBD1dHFwVHPxeFgCB_l1DnEE9_P4UQD9cgV383HgbWtMSc4lReKM3NoOjmGuLsoZtakB-fWlyQmJyal1oS7xXgYWBhZGBhbGTmaEyMGgDwRSmO</recordid><startdate>19960813</startdate><enddate>19960813</enddate><creator>OOTSUBO TAKASHIRO</creator><creator>YAMAGUCHI SHINICHI</creator><creator>KONDO TERUO</creator><scope>EVB</scope></search><sort><creationdate>19960813</creationdate><title>NONMAGNETIC CERAMIC FOR MAGNETIC HEAD AND PRODUCTION THEREOF</title><author>OOTSUBO TAKASHIRO ; YAMAGUCHI SHINICHI ; KONDO TERUO</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_JPH08208326A3</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>eng</language><creationdate>1996</creationdate><topic>ARTIFICIAL STONE</topic><topic>CEMENTS</topic><topic>CERAMICS</topic><topic>CHEMISTRY</topic><topic>COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDINGMATERIALS</topic><topic>CONCRETE</topic><topic>INFORMATION STORAGE</topic><topic>INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORDCARRIER AND TRANSDUCER</topic><topic>LIME, MAGNESIA</topic><topic>METALLURGY</topic><topic>PHYSICS</topic><topic>REFRACTORIES</topic><topic>SLAG</topic><topic>TREATMENT OF NATURAL STONE</topic><toplevel>online_resources</toplevel><creatorcontrib>OOTSUBO TAKASHIRO</creatorcontrib><creatorcontrib>YAMAGUCHI SHINICHI</creatorcontrib><creatorcontrib>KONDO TERUO</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>OOTSUBO TAKASHIRO</au><au>YAMAGUCHI SHINICHI</au><au>KONDO TERUO</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>NONMAGNETIC CERAMIC FOR MAGNETIC HEAD AND PRODUCTION THEREOF</title><date>1996-08-13</date><risdate>1996</risdate><abstract>PURPOSE: To decrease a void amt. without HIP treatment and to improve reliability with good workability and low cost by forming a ceramic material essentially comprising TiO2 and BaO and having two phases of TiO2 phase and BaTi5 O11 phase as the main crystalline phases. CONSTITUTION: BaCO3 and TiO2 are mixed to obtain 9.7 to 9.8×10<-6> / deg.C coefft. of thermal expansion, into which Al2 O3 and SiO2 .ZrO2 are compounded to obtain a specified compsn. and ion exchanged water is added. The mixture is kneaded in a beads mill and molded in a wet state into a square plate under 0.8Ton/cm pressure. The molded body is dried and fired at 1140-1180 deg.C to obtain a sintered compact having <=850kg/mm Vickers hardness. This sintered compact is used to obtain such a nonmagnetic ceramic material for a magnetic head that contains 0.07-3wt.% Al2 O3 , 0.05-0.1wt.% SiO2 and 0.3-1.0wt.% ZrO2 to 100wt.% of TiO2 and BaO as the main component and has <=0.1% void rate in the plane and <=2μm max. void diameter.</abstract><edition>6</edition><oa>free_for_read</oa></addata></record>
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language	eng
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subjects	ARTIFICIAL STONE CEMENTS CERAMICS CHEMISTRY COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDINGMATERIALS CONCRETE INFORMATION STORAGE INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORDCARRIER AND TRANSDUCER LIME, MAGNESIA METALLURGY PHYSICS REFRACTORIES SLAG TREATMENT OF NATURAL STONE
title	NONMAGNETIC CERAMIC FOR MAGNETIC HEAD AND PRODUCTION THEREOF
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