MANUFACTURE OF VOLTAGE NONLINEAR RESISTOR
PROBLEM TO BE SOLVED: To provide a method for manufacturing a voltage nonlinear resistor having superior voltage nonlinearity. SOLUTION: A voltage nonlinear resistor is manufactured by applying a mixture consisting of two or more kinds of compounds, which are selected from among the carbonates and f...
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| creator | NAKAJO HIROSHI HORI AKIO OKUMURA MASATOMI |
| description | PROBLEM TO BE SOLVED: To provide a method for manufacturing a voltage nonlinear resistor having superior voltage nonlinearity. SOLUTION: A voltage nonlinear resistor is manufactured by applying a mixture consisting of two or more kinds of compounds, which are selected from among the carbonates and fluorides of Li, Na, K, and Rb and with which the mixture is capable of becoming an eutectic mixture and able to have a melting point which is less than or equal to 50 deg.C higher than the eutectic point to a semiconducting porcelain obtained, by backing a mixture composed mainly of strontium titanate in a reducing environment and heat-treating the semiconducting porcelain at a temperature between the melting point of the mixture and 1,200 deg.C. Since the grain boundary diffusing agent becomes a liquid phase starting at a lower temperature, the beginning of alkali metal ion diffusion in a heat-treating process become earlier and the grain boundaries can be insulated effectively. |
| format | Patent |
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SOLUTION: A voltage nonlinear resistor is manufactured by applying a mixture consisting of two or more kinds of compounds, which are selected from among the carbonates and fluorides of Li, Na, K, and Rb and with which the mixture is capable of becoming an eutectic mixture and able to have a melting point which is less than or equal to 50 deg.C higher than the eutectic point to a semiconducting porcelain obtained, by backing a mixture composed mainly of strontium titanate in a reducing environment and heat-treating the semiconducting porcelain at a temperature between the melting point of the mixture and 1,200 deg.C. Since the grain boundary diffusing agent becomes a liquid phase starting at a lower temperature, the beginning of alkali metal ion diffusion in a heat-treating process become earlier and the grain boundaries can be insulated effectively.</description><edition>6</edition><language>eng</language><subject>ARTIFICIAL STONE ; BASIC ELECTRIC ELEMENTS ; CEMENTS ; CERAMICS ; CHEMISTRY ; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDINGMATERIALS ; CONCRETE ; ELECTRICITY ; LIME, MAGNESIA ; METALLURGY ; REFRACTORIES ; RESISTORS ; SLAG ; TREATMENT OF NATURAL STONE</subject><creationdate>1999</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=19990730&DB=EPODOC&CC=JP&NR=H11204308A$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,780,885,25564,76547</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=19990730&DB=EPODOC&CC=JP&NR=H11204308A$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>NAKAJO HIROSHI</creatorcontrib><creatorcontrib>HORI AKIO</creatorcontrib><creatorcontrib>OKUMURA MASATOMI</creatorcontrib><title>MANUFACTURE OF VOLTAGE NONLINEAR RESISTOR</title><description>PROBLEM TO BE SOLVED: To provide a method for manufacturing a voltage nonlinear resistor having superior voltage nonlinearity. SOLUTION: A voltage nonlinear resistor is manufactured by applying a mixture consisting of two or more kinds of compounds, which are selected from among the carbonates and fluorides of Li, Na, K, and Rb and with which the mixture is capable of becoming an eutectic mixture and able to have a melting point which is less than or equal to 50 deg.C higher than the eutectic point to a semiconducting porcelain obtained, by backing a mixture composed mainly of strontium titanate in a reducing environment and heat-treating the semiconducting porcelain at a temperature between the melting point of the mixture and 1,200 deg.C. Since the grain boundary diffusing agent becomes a liquid phase starting at a lower temperature, the beginning of alkali metal ion diffusion in a heat-treating process become earlier and the grain boundaries can be insulated effectively.</description><subject>ARTIFICIAL STONE</subject><subject>BASIC ELECTRIC ELEMENTS</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>ELECTRICITY</subject><subject>LIME, MAGNESIA</subject><subject>METALLURGY</subject><subject>REFRACTORIES</subject><subject>RESISTORS</subject><subject>SLAG</subject><subject>TREATMENT OF NATURAL STONE</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>1999</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNrjZND0dfQLdXN0DgkNclXwd1MI8_cJcXR3VfDz9_Px9HN1DFIIcg32DA7xD-JhYE1LzClO5YXS3AyKbq4hzh66qQX58anFBYnJqXmpJfFeAR6GhkYGJsYGFo7GxKgBAEbYJLs</recordid><startdate>19990730</startdate><enddate>19990730</enddate><creator>NAKAJO HIROSHI</creator><creator>HORI AKIO</creator><creator>OKUMURA MASATOMI</creator><scope>EVB</scope></search><sort><creationdate>19990730</creationdate><title>MANUFACTURE OF VOLTAGE NONLINEAR RESISTOR</title><author>NAKAJO HIROSHI ; HORI AKIO ; OKUMURA MASATOMI</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_JPH11204308A3</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>eng</language><creationdate>1999</creationdate><topic>ARTIFICIAL STONE</topic><topic>BASIC ELECTRIC ELEMENTS</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>ELECTRICITY</topic><topic>LIME, MAGNESIA</topic><topic>METALLURGY</topic><topic>REFRACTORIES</topic><topic>RESISTORS</topic><topic>SLAG</topic><topic>TREATMENT OF NATURAL STONE</topic><toplevel>online_resources</toplevel><creatorcontrib>NAKAJO HIROSHI</creatorcontrib><creatorcontrib>HORI AKIO</creatorcontrib><creatorcontrib>OKUMURA MASATOMI</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>NAKAJO HIROSHI</au><au>HORI AKIO</au><au>OKUMURA MASATOMI</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>MANUFACTURE OF VOLTAGE NONLINEAR RESISTOR</title><date>1999-07-30</date><risdate>1999</risdate><abstract>PROBLEM TO BE SOLVED: To provide a method for manufacturing a voltage nonlinear resistor having superior voltage nonlinearity. SOLUTION: A voltage nonlinear resistor is manufactured by applying a mixture consisting of two or more kinds of compounds, which are selected from among the carbonates and fluorides of Li, Na, K, and Rb and with which the mixture is capable of becoming an eutectic mixture and able to have a melting point which is less than or equal to 50 deg.C higher than the eutectic point to a semiconducting porcelain obtained, by backing a mixture composed mainly of strontium titanate in a reducing environment and heat-treating the semiconducting porcelain at a temperature between the melting point of the mixture and 1,200 deg.C. Since the grain boundary diffusing agent becomes a liquid phase starting at a lower temperature, the beginning of alkali metal ion diffusion in a heat-treating process become earlier and the grain boundaries can be insulated effectively.</abstract><edition>6</edition><oa>free_for_read</oa></addata></record> |
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| subjects | ARTIFICIAL STONE BASIC ELECTRIC ELEMENTS CEMENTS CERAMICS CHEMISTRY COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDINGMATERIALS CONCRETE ELECTRICITY LIME, MAGNESIA METALLURGY REFRACTORIES RESISTORS SLAG TREATMENT OF NATURAL STONE |
| title | MANUFACTURE OF VOLTAGE NONLINEAR RESISTOR |
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