A method of determining phase-transition temperatures using solar heating
The phase-transition temperatures in oxide systems were determined on the basis of the process of solidification of specimens which were partially melted on the surface in the focus of a solar furnace. In the ZrO/sub 2/-Y/sub 2/O/sub 3/ binary systems, the specimens with intermediate composition wer...
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| Veröffentlicht in: | Sov. Powder Metall. Met. Ceram. (Engl. Transl.); (United States) 1986-01, Vol.25 (1), p.79-82 |
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| container_title | Sov. Powder Metall. Met. Ceram. (Engl. Transl.); (United States) |
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| creator | Shevchenko, A. V. Tkachenko, V. D. Lopato, L. M. Ruban, A. K. Pasichnyi, V. V. |
| description | The phase-transition temperatures in oxide systems were determined on the basis of the process of solidification of specimens which were partially melted on the surface in the focus of a solar furnace. In the ZrO/sub 2/-Y/sub 2/O/sub 3/ binary systems, the specimens with intermediate composition were prepared by combined precipitation of zirconium and yttrium hydroxides from nitric acid solutions followed by drying, roasting at 800 C, briquetting, and melting in the solar furnace. The described method of determination of the phase-transition temperatures in the oxide systems on the basis of the surface of the specimens partially melted in the focus of the solar furnace has a number of advantages in comparison with the method of evaluating the temperatures from the radiation of the rotating cavity: it is not necessary to form the cavity with the emissivity properties similar to those of the absolute blackbody; and the oxide melt formed in the course of melting is distributed mainly on the surface of the specimen so that after interrupting the radiation flux the melt solidifies in its entire volume. |
| doi_str_mv | 10.1007/BF00843028 |
| format | Article |
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V. ; Tkachenko, V. D. ; Lopato, L. M. ; Ruban, A. K. ; Pasichnyi, V. V.</creator><creatorcontrib>Shevchenko, A. V. ; Tkachenko, V. D. ; Lopato, L. M. ; Ruban, A. K. ; Pasichnyi, V. V. ; Institute of Problems of of the Ukrainian SSR</creatorcontrib><description>The phase-transition temperatures in oxide systems were determined on the basis of the process of solidification of specimens which were partially melted on the surface in the focus of a solar furnace. In the ZrO/sub 2/-Y/sub 2/O/sub 3/ binary systems, the specimens with intermediate composition were prepared by combined precipitation of zirconium and yttrium hydroxides from nitric acid solutions followed by drying, roasting at 800 C, briquetting, and melting in the solar furnace. The described method of determination of the phase-transition temperatures in the oxide systems on the basis of the surface of the specimens partially melted in the focus of the solar furnace has a number of advantages in comparison with the method of evaluating the temperatures from the radiation of the rotating cavity: it is not necessary to form the cavity with the emissivity properties similar to those of the absolute blackbody; and the oxide melt formed in the course of melting is distributed mainly on the surface of the specimen so that after interrupting the radiation flux the melt solidifies in its entire volume.</description><identifier>ISSN: 0038-5735</identifier><identifier>EISSN: 1573-9066</identifier><identifier>DOI: 10.1007/BF00843028</identifier><language>eng</language><publisher>United States</publisher><subject>360202 - Ceramics, Cermets, & Refractories- Structure & Phase Studies ; 360204 - Ceramics, Cermets, & Refractories- Physical Properties ; ALLOYS ; BLACKBODY RADIATION ; CHALCOGENIDES ; ELECTROMAGNETIC RADIATION ; ELEMENTS ; EMISSIVITY ; ERBIUM COMPOUNDS ; ERBIUM OXIDES ; FURNACES ; HAFNIUM COMPOUNDS ; HAFNIUM OXIDES ; HEATING ; MATERIALS SCIENCE ; MATERIALS TESTING ; MELTING ; METALS ; MONITORING ; MONOCHROMATIC RADIATION ; OPTICAL PROPERTIES ; OXIDES ; OXYGEN COMPOUNDS ; PHASE TRANSFORMATIONS ; PHYSICAL PROPERTIES ; RADIATIONS ; RARE EARTH COMPOUNDS ; REFRACTORY METAL COMPOUNDS ; REFRACTORY METALS ; SCANDIUM COMPOUNDS ; SCANDIUM OXIDES ; SOLAR EQUIPMENT ; SOLAR FURNACES ; SOLAR HEATING ; SOLIDIFICATION ; SURFACE PROPERTIES ; TEMPERATURE MONITORING ; TESTING ; THERMODYNAMIC PROPERTIES ; TRANSITION ELEMENT COMPOUNDS ; TRANSITION TEMPERATURE ; YTTRIUM COMPOUNDS ; YTTRIUM OXIDES ; ZIRCONIUM COMPOUNDS ; ZIRCONIUM OXIDES</subject><ispartof>Sov. 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V.</creatorcontrib><creatorcontrib>Institute of Problems of of the Ukrainian SSR</creatorcontrib><title>A method of determining phase-transition temperatures using solar heating</title><title>Sov. Powder Metall. Met. Ceram. (Engl. Transl.); (United States)</title><description>The phase-transition temperatures in oxide systems were determined on the basis of the process of solidification of specimens which were partially melted on the surface in the focus of a solar furnace. In the ZrO/sub 2/-Y/sub 2/O/sub 3/ binary systems, the specimens with intermediate composition were prepared by combined precipitation of zirconium and yttrium hydroxides from nitric acid solutions followed by drying, roasting at 800 C, briquetting, and melting in the solar furnace. The described method of determination of the phase-transition temperatures in the oxide systems on the basis of the surface of the specimens partially melted in the focus of the solar furnace has a number of advantages in comparison with the method of evaluating the temperatures from the radiation of the rotating cavity: it is not necessary to form the cavity with the emissivity properties similar to those of the absolute blackbody; and the oxide melt formed in the course of melting is distributed mainly on the surface of the specimen so that after interrupting the radiation flux the melt solidifies in its entire volume.</description><subject>360202 - Ceramics, Cermets, & Refractories- Structure & Phase Studies</subject><subject>360204 - Ceramics, Cermets, & Refractories- Physical Properties</subject><subject>ALLOYS</subject><subject>BLACKBODY RADIATION</subject><subject>CHALCOGENIDES</subject><subject>ELECTROMAGNETIC RADIATION</subject><subject>ELEMENTS</subject><subject>EMISSIVITY</subject><subject>ERBIUM COMPOUNDS</subject><subject>ERBIUM OXIDES</subject><subject>FURNACES</subject><subject>HAFNIUM COMPOUNDS</subject><subject>HAFNIUM OXIDES</subject><subject>HEATING</subject><subject>MATERIALS SCIENCE</subject><subject>MATERIALS TESTING</subject><subject>MELTING</subject><subject>METALS</subject><subject>MONITORING</subject><subject>MONOCHROMATIC RADIATION</subject><subject>OPTICAL PROPERTIES</subject><subject>OXIDES</subject><subject>OXYGEN COMPOUNDS</subject><subject>PHASE TRANSFORMATIONS</subject><subject>PHYSICAL PROPERTIES</subject><subject>RADIATIONS</subject><subject>RARE EARTH COMPOUNDS</subject><subject>REFRACTORY METAL COMPOUNDS</subject><subject>REFRACTORY METALS</subject><subject>SCANDIUM COMPOUNDS</subject><subject>SCANDIUM OXIDES</subject><subject>SOLAR EQUIPMENT</subject><subject>SOLAR FURNACES</subject><subject>SOLAR HEATING</subject><subject>SOLIDIFICATION</subject><subject>SURFACE PROPERTIES</subject><subject>TEMPERATURE MONITORING</subject><subject>TESTING</subject><subject>THERMODYNAMIC PROPERTIES</subject><subject>TRANSITION ELEMENT COMPOUNDS</subject><subject>TRANSITION TEMPERATURE</subject><subject>YTTRIUM COMPOUNDS</subject><subject>YTTRIUM OXIDES</subject><subject>ZIRCONIUM COMPOUNDS</subject><subject>ZIRCONIUM OXIDES</subject><issn>0038-5735</issn><issn>1573-9066</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>1986</creationdate><recordtype>article</recordtype><recordid>eNpFkMFKAzEURYMoWKsbvyC4FEbfM5lJZlmL1ULBja6HNHlxIp1JSdKFf--UCi4ulwuHuziM3SI8IIB6fF4BaCngSZ-xGdZKVC00zTmbAQhdTbu-ZFc5fwNMuMQZWy_4QKWPjkfPHRVKQxjD-MX3vclUlWTGHEqIIy807CmZckiU-SEfmRx3JvGeTJnWNbvwZpfp5q_n7HP18rF8qzbvr-vlYlNZVFgq8tgob7WrRd06tK13RNY2RoJXaBppUKNDp8CQkt5tqVXSCmi30uspYs7uTr8xl9BlGwrZ3sZxJFu6GhshdT1B9yfIpphzIt_tUxhM-ukQuqOp7t-U-AVGNlw0</recordid><startdate>198601</startdate><enddate>198601</enddate><creator>Shevchenko, A. V.</creator><creator>Tkachenko, V. D.</creator><creator>Lopato, L. M.</creator><creator>Ruban, A. K.</creator><creator>Pasichnyi, V. V.</creator><scope>AAYXX</scope><scope>CITATION</scope><scope>OTOTI</scope></search><sort><creationdate>198601</creationdate><title>A method of determining phase-transition temperatures using solar heating</title><author>Shevchenko, A. V. ; Tkachenko, V. D. ; Lopato, L. M. ; Ruban, A. K. ; Pasichnyi, V. V.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c171t-ef167fc8d5359d1c9fdeecc6a40f71a64a181d1d70ae74fdbe974c309b4f8b4f3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>1986</creationdate><topic>360202 - Ceramics, Cermets, & Refractories- Structure & Phase Studies</topic><topic>360204 - Ceramics, Cermets, & Refractories- Physical Properties</topic><topic>ALLOYS</topic><topic>BLACKBODY RADIATION</topic><topic>CHALCOGENIDES</topic><topic>ELECTROMAGNETIC RADIATION</topic><topic>ELEMENTS</topic><topic>EMISSIVITY</topic><topic>ERBIUM COMPOUNDS</topic><topic>ERBIUM OXIDES</topic><topic>FURNACES</topic><topic>HAFNIUM COMPOUNDS</topic><topic>HAFNIUM OXIDES</topic><topic>HEATING</topic><topic>MATERIALS SCIENCE</topic><topic>MATERIALS TESTING</topic><topic>MELTING</topic><topic>METALS</topic><topic>MONITORING</topic><topic>MONOCHROMATIC RADIATION</topic><topic>OPTICAL PROPERTIES</topic><topic>OXIDES</topic><topic>OXYGEN COMPOUNDS</topic><topic>PHASE TRANSFORMATIONS</topic><topic>PHYSICAL PROPERTIES</topic><topic>RADIATIONS</topic><topic>RARE EARTH COMPOUNDS</topic><topic>REFRACTORY METAL COMPOUNDS</topic><topic>REFRACTORY METALS</topic><topic>SCANDIUM COMPOUNDS</topic><topic>SCANDIUM OXIDES</topic><topic>SOLAR EQUIPMENT</topic><topic>SOLAR FURNACES</topic><topic>SOLAR HEATING</topic><topic>SOLIDIFICATION</topic><topic>SURFACE PROPERTIES</topic><topic>TEMPERATURE MONITORING</topic><topic>TESTING</topic><topic>THERMODYNAMIC PROPERTIES</topic><topic>TRANSITION ELEMENT COMPOUNDS</topic><topic>TRANSITION TEMPERATURE</topic><topic>YTTRIUM COMPOUNDS</topic><topic>YTTRIUM OXIDES</topic><topic>ZIRCONIUM COMPOUNDS</topic><topic>ZIRCONIUM OXIDES</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Shevchenko, A. V.</creatorcontrib><creatorcontrib>Tkachenko, V. D.</creatorcontrib><creatorcontrib>Lopato, L. M.</creatorcontrib><creatorcontrib>Ruban, A. K.</creatorcontrib><creatorcontrib>Pasichnyi, V. V.</creatorcontrib><creatorcontrib>Institute of Problems of of the Ukrainian SSR</creatorcontrib><collection>CrossRef</collection><collection>OSTI.GOV</collection><jtitle>Sov. Powder Metall. Met. Ceram. (Engl. Transl.); (United States)</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Shevchenko, A. V.</au><au>Tkachenko, V. D.</au><au>Lopato, L. M.</au><au>Ruban, A. K.</au><au>Pasichnyi, V. V.</au><aucorp>Institute of Problems of of the Ukrainian SSR</aucorp><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>A method of determining phase-transition temperatures using solar heating</atitle><jtitle>Sov. Powder Metall. Met. Ceram. (Engl. Transl.); (United States)</jtitle><date>1986-01</date><risdate>1986</risdate><volume>25</volume><issue>1</issue><spage>79</spage><epage>82</epage><pages>79-82</pages><issn>0038-5735</issn><eissn>1573-9066</eissn><abstract>The phase-transition temperatures in oxide systems were determined on the basis of the process of solidification of specimens which were partially melted on the surface in the focus of a solar furnace. In the ZrO/sub 2/-Y/sub 2/O/sub 3/ binary systems, the specimens with intermediate composition were prepared by combined precipitation of zirconium and yttrium hydroxides from nitric acid solutions followed by drying, roasting at 800 C, briquetting, and melting in the solar furnace. The described method of determination of the phase-transition temperatures in the oxide systems on the basis of the surface of the specimens partially melted in the focus of the solar furnace has a number of advantages in comparison with the method of evaluating the temperatures from the radiation of the rotating cavity: it is not necessary to form the cavity with the emissivity properties similar to those of the absolute blackbody; and the oxide melt formed in the course of melting is distributed mainly on the surface of the specimen so that after interrupting the radiation flux the melt solidifies in its entire volume.</abstract><cop>United States</cop><doi>10.1007/BF00843028</doi><tpages>4</tpages></addata></record> |
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| ispartof | Sov. Powder Metall. Met. Ceram. (Engl. Transl.); (United States), 1986-01, Vol.25 (1), p.79-82 |
| issn | 0038-5735 1573-9066 |
| language | eng |
| recordid | cdi_crossref_primary_10_1007_BF00843028 |
| source | Springer Nature - Complete Springer Journals |
| subjects | 360202 - Ceramics, Cermets, & Refractories- Structure & Phase Studies 360204 - Ceramics, Cermets, & Refractories- Physical Properties ALLOYS BLACKBODY RADIATION CHALCOGENIDES ELECTROMAGNETIC RADIATION ELEMENTS EMISSIVITY ERBIUM COMPOUNDS ERBIUM OXIDES FURNACES HAFNIUM COMPOUNDS HAFNIUM OXIDES HEATING MATERIALS SCIENCE MATERIALS TESTING MELTING METALS MONITORING MONOCHROMATIC RADIATION OPTICAL PROPERTIES OXIDES OXYGEN COMPOUNDS PHASE TRANSFORMATIONS PHYSICAL PROPERTIES RADIATIONS RARE EARTH COMPOUNDS REFRACTORY METAL COMPOUNDS REFRACTORY METALS SCANDIUM COMPOUNDS SCANDIUM OXIDES SOLAR EQUIPMENT SOLAR FURNACES SOLAR HEATING SOLIDIFICATION SURFACE PROPERTIES TEMPERATURE MONITORING TESTING THERMODYNAMIC PROPERTIES TRANSITION ELEMENT COMPOUNDS TRANSITION TEMPERATURE YTTRIUM COMPOUNDS YTTRIUM OXIDES ZIRCONIUM COMPOUNDS ZIRCONIUM OXIDES |
| title | A method of determining phase-transition temperatures using solar heating |
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