Negative Thermal Expansion in Ferromagnetic Fe-Ni Invar Alloys
The INVAR effect in 3D-transition metal Fe1-xNix alloys with x=0.35, 0.50,0.70 is studied.Experiments have been made on thermal and structural properties to study the physical origin of INVAR characteristics such as thermal expansion atomic ordering, phase transition an...
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| Language: | en |
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2010
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| Online Access: | http://umpir.ump.edu.my/id/eprint/1208/1/Negative_Thermal_Expansion_in_Ferromagnetic.PDF http://umpir.ump.edu.my/id/eprint/1208/ |
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| author | Yusof, Hashim Jinan Basheer, Ahmed Ismail K., Al-Faluji |
| author_facet | Yusof, Hashim Jinan Basheer, Ahmed Ismail K., Al-Faluji |
| author_sort | Yusof, Hashim |
| building | UMPSA Library |
| collection | Institutional Repository |
| content_provider | Universiti Malaysia Pahang Al-Sultan Abdullah |
| content_source | UMPSA Institutional Repository |
| continent | Asia |
| country | Malaysia |
| description | The INVAR effect in 3D-transition metal Fe1-xNix alloys with x=0.35, 0.50,0.70 is studied.Experiments have been made on thermal and structural properties to study the physical origin of INVAR characteristics such as thermal expansion atomic ordering, phase transition and curie temperature (Tc) which are closely related to its ferromagnetism. Fe0.65Ni0.35 shows an anomalously negative thermal expansion coefficient below the curie temperature 528K with Fcc structure. This behavior is not found in other combination.The specific heat results shows an anomalous temperature dependant where a strong decrease in curie temperature as well as the magnetic heat of transformation occur with decreasing Ni% content. |
| format | Conference or Workshop Item |
| id | my.ump.umpir.1208 |
| institution | Universiti Malaysia Pahang |
| language | en |
| publishDate | 2010 |
| record_format | eprints |
| spelling | my.ump.umpir.12082016-12-08T07:59:39Z http://umpir.ump.edu.my/id/eprint/1208/ Negative Thermal Expansion in Ferromagnetic Fe-Ni Invar Alloys Yusof, Hashim Jinan Basheer, Ahmed Ismail K., Al-Faluji TJ Mechanical engineering and machinery The INVAR effect in 3D-transition metal Fe1-xNix alloys with x=0.35, 0.50,0.70 is studied.Experiments have been made on thermal and structural properties to study the physical origin of INVAR characteristics such as thermal expansion atomic ordering, phase transition and curie temperature (Tc) which are closely related to its ferromagnetism. Fe0.65Ni0.35 shows an anomalously negative thermal expansion coefficient below the curie temperature 528K with Fcc structure. This behavior is not found in other combination.The specific heat results shows an anomalous temperature dependant where a strong decrease in curie temperature as well as the magnetic heat of transformation occur with decreasing Ni% content. 2010 Conference or Workshop Item PeerReviewed application/pdf en http://umpir.ump.edu.my/id/eprint/1208/1/Negative_Thermal_Expansion_in_Ferromagnetic.PDF Yusof, Hashim and Jinan Basheer, Ahmed and Ismail K., Al-Faluji (2010) Negative Thermal Expansion in Ferromagnetic Fe-Ni Invar Alloys. In: 3rd International Conference on Solid State Science & Technology (ICSSST 2010) , 1-3 December 2010 , Kuching, Sarawak, Malaysia. . (Published) |
| spellingShingle | TJ Mechanical engineering and machinery Yusof, Hashim Jinan Basheer, Ahmed Ismail K., Al-Faluji Negative Thermal Expansion in Ferromagnetic Fe-Ni Invar Alloys |
| title | Negative Thermal Expansion in Ferromagnetic Fe-Ni Invar Alloys |
| title_full | Negative Thermal Expansion in Ferromagnetic Fe-Ni Invar Alloys |
| title_fullStr | Negative Thermal Expansion in Ferromagnetic Fe-Ni Invar Alloys |
| title_full_unstemmed | Negative Thermal Expansion in Ferromagnetic Fe-Ni Invar Alloys |
| title_short | Negative Thermal Expansion in Ferromagnetic Fe-Ni Invar Alloys |
| title_sort | negative thermal expansion in ferromagnetic fe-ni invar alloys |
| topic | TJ Mechanical engineering and machinery |
| url | http://umpir.ump.edu.my/id/eprint/1208/1/Negative_Thermal_Expansion_in_Ferromagnetic.PDF http://umpir.ump.edu.my/id/eprint/1208/ |
| url_provider | http://umpir.ump.edu.my/ |