TWI750137B
Provided is an industrially advantageous method for obtaining zirconium tungsten phosphate that has a single phase as observed by x-ray diffraction and that is useful as a negative thermal expansion material. This production method for zirconium tungsten phosphate is characterized by the firing of a...
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| creator | FUKAZAWA, JUNYA |
| description | Provided is an industrially advantageous method for obtaining zirconium tungsten phosphate that has a single phase as observed by x-ray diffraction and that is useful as a negative thermal expansion material. This production method for zirconium tungsten phosphate is characterized by the firing of a reaction precursor that is a mixture of a tungsten compound and an amorphous compound that includes phosphorous and zirconium. The reaction precursor has an infrared absorption peak at least within 950-1150 cm-1, and the maximum infrared absorption peak value in said range is preferably 1030 (±20) cm-1. |
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This production method for zirconium tungsten phosphate is characterized by the firing of a reaction precursor that is a mixture of a tungsten compound and an amorphous compound that includes phosphorous and zirconium. 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This production method for zirconium tungsten phosphate is characterized by the firing of a reaction precursor that is a mixture of a tungsten compound and an amorphous compound that includes phosphorous and zirconium. The reaction precursor has an infrared absorption peak at least within 950-1150 cm-1, and the maximum infrared absorption peak value in said range is preferably 1030 (±20) cm-1.</description><subject>ALLOYS</subject><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>COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSESC01D OR C01F</subject><subject>CONCRETE</subject><subject>FERROUS OR NON-FERROUS ALLOYS</subject><subject>INORGANIC CHEMISTRY</subject><subject>LIME, MAGNESIA</subject><subject>METALLURGY</subject><subject>REFRACTORIES</subject><subject>SLAG</subject><subject>TREATMENT OF ALLOYS OR NON-FERROUS METALS</subject><subject>TREATMENT OF NATURAL STONE</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>2021</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNrjZOAKCfc0NzUwNDZ34mFgTUvMKU7lhdLcDApuriHOHrqpBfnxqcUFicmpeakl8QgNTsZEKAEACHYbdg</recordid><startdate>20211221</startdate><enddate>20211221</enddate><creator>FUKAZAWA, JUNYA</creator><scope>EVB</scope></search><sort><creationdate>20211221</creationdate><title>TWI750137B</title><author>FUKAZAWA, JUNYA</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_TWI750137BB3</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>chi</language><creationdate>2021</creationdate><topic>ALLOYS</topic><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>COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSESC01D OR C01F</topic><topic>CONCRETE</topic><topic>FERROUS OR NON-FERROUS ALLOYS</topic><topic>INORGANIC CHEMISTRY</topic><topic>LIME, MAGNESIA</topic><topic>METALLURGY</topic><topic>REFRACTORIES</topic><topic>SLAG</topic><topic>TREATMENT OF ALLOYS OR NON-FERROUS METALS</topic><topic>TREATMENT OF NATURAL STONE</topic><toplevel>online_resources</toplevel><creatorcontrib>FUKAZAWA, JUNYA</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>FUKAZAWA, JUNYA</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>TWI750137B</title><date>2021-12-21</date><risdate>2021</risdate><abstract>Provided is an industrially advantageous method for obtaining zirconium tungsten phosphate that has a single phase as observed by x-ray diffraction and that is useful as a negative thermal expansion material. This production method for zirconium tungsten phosphate is characterized by the firing of a reaction precursor that is a mixture of a tungsten compound and an amorphous compound that includes phosphorous and zirconium. The reaction precursor has an infrared absorption peak at least within 950-1150 cm-1, and the maximum infrared absorption peak value in said range is preferably 1030 (±20) cm-1.</abstract><oa>free_for_read</oa></addata></record> |
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| subjects | ALLOYS ARTIFICIAL STONE CEMENTS CERAMICS CHEMISTRY COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDINGMATERIALS COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSESC01D OR C01F CONCRETE FERROUS OR NON-FERROUS ALLOYS INORGANIC CHEMISTRY LIME, MAGNESIA METALLURGY REFRACTORIES SLAG TREATMENT OF ALLOYS OR NON-FERROUS METALS TREATMENT OF NATURAL STONE |
| title | TWI750137B |
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