Show/Hide Menu
Hide/Show Apps
Logout
Türkçe
Türkçe
Search
Search
Login
Login
OpenMETU
OpenMETU
About
About
Open Science Policy
Open Science Policy
Open Access Guideline
Open Access Guideline
Postgraduate Thesis Guideline
Postgraduate Thesis Guideline
Communities & Collections
Communities & Collections
Help
Help
Frequently Asked Questions
Frequently Asked Questions
Guides
Guides
Thesis submission
Thesis submission
MS without thesis term project submission
MS without thesis term project submission
Publication submission with DOI
Publication submission with DOI
Publication submission
Publication submission
Supporting Information
Supporting Information
General Information
General Information
Copyright, Embargo and License
Copyright, Embargo and License
Contact us
Contact us
Design and Development of Ni Based Heusler Alloys for Magnetic Refrigeration
Date
2016-10-01
Author
Toraman, Seda
Mehrabov, Amdulla
Akdeniz, Mahmut Vedat
Metadata
Show full item record
Item Usage Stats
117
views
0
downloads
Cite This
Magnetic refrigeration is a cooling technology based on the magnetocaloric effect (MCE). It has attracted increasing interest because of its higher cooling efficiency and enviromently friendliness. Recently, Nibased Heusler alloys have received considerable attention due to their unique properties like stronger magnetocaloric effect. In order to characterize the orderorder (L21ļB2) and order-disorder (B2ļA2) transitions in A2BC type full Heusler alloys, statisticothermodynamical theory of ordering by means of BraggWilliams-Gorsky (BWG) method combined with electronic theory in the pseudopotential approximation have been employed. The partial ordering energies, calculated according to the electronic theory of alloys in pseudopotential approximation for the first two coordination spheres were utilized as input data for the theoretical superlattice formation models based on BWG approximation. The L21ļB2 and B2ļA2 critical phase transformation temperatures have been determined in Ni50Mn50-xSbx alloy.
URI
http://www1.metalurji.org.tr/immc2016/IMMC2016_Bildiriler.pdf
https://hdl.handle.net/11511/81726
Conference Name
18th International Metallurgy & Materials Congress IMMC (29 Eylül - 01 Ekim 2016)
Collections
Department of Metallurgical and Materials Engineering, Conference / Seminar
Suggestions
OpenMETU
Core
Numerical investigation of natural convection from inclined plate finned heat sinks
Mehrtash, Mehdi; Tarı, İlker; Department of Mechanical Engineering (2011)
Finned heat sink use for electronics cooling via natural convection is numerically investigated. An experimental study from the literature that is for vertical surfaces is taken as the base case and the experimental setup is numerically modeled using commercial CFD software. The flow and temperature fields are resolved. A scale analysis is applied to produce an order-of-magnitude estimate for maximum convection heat transfer corresponding to the optimum fin spacing. By showing a good agreement of the result...
Development of Nanocomposite Electrodes and Separators for Supercapacitors
Aydınlı, Alptekin; Ünalan, Hüsnü Emrah; Department of Metallurgical and Materials Engineering (2022-2-10)
Supercapacitors or electrochemical capacitors are known as one of the most promising energy storage systems for the 21st century. Having the potential to complement batteries, supercapacitors have received a lot of attention thanks to their high specific power and moderate energy densities. Supercapacitors have various application areas ranging from electric vehicles to portable systems and devices. In particular, their fast charge-discharge feature enables integration with consumer electronics, mobile devi...
Implementation of metal-based microchannel heat exchangers in a microrefrigeration cycle, and numerical and experimental investigation of surface roughness effects on flow boiling
Jafari Khousheh Mehr, Rahim; Okutucu Özyurt, Hanife Tuba; Ünver, Hakkı Özgür; Department of Mechanical Engineering (2015)
A microscale vapor compression refrigeration cycle has been constructed for possible application in the thermal management of compact electronic components. The micro-evaporator and micro-condenser components have been fabricated using wire electron discharge machining and micromilling, respectively. Three microevaporators have been manufactured with different surface roughness for the experimental and numerical investigation of roughness effect on nucleate flow boiling in microchannels. In the numerical pa...
Design, optimization and testing of micro-evaporator and micro-condenser components used in a miniature vapor compression refrigeration cycle
Türkakar, Göker; Okutucu Özyurt, Hanife Tuba; Department of Mechanical Engineering (2016)
This study aims to optimize the dimensions and operating conditions of two main components of a miniature vapor compression refrigeration cycle (MVCRC), evaporator and condenser by using entropy generation minimization (EGM). In addition, some performance tests are conducted on a MVCRC which is constructed based on the EGM analysis as long as the manufacturing constraints permit. R134a is used as the coolant. Entropy generation rate in the evaporator of the MVCRC is investigated under the effects of exit va...
Comprehensive modeling of heat and mass transport in a micropillar evaporator
Yuncu, Göksel; Dursunkaya, Zafer; Akkuş, Yiğit; Department of Mechanical Engineering (2022-4-05)
Thin-film evaporation and the replenishing capillary liquid flow have paramount importance for various technological applications spanning from desalination to electronics cooling. With the developments enabling faster and cheaper yet more precise fabrication, evaporators with micropillar arrays have attracted substantial attention to sustain efficient evaporation fed by passive liquid transport. Although considerable effort has been devoted to designing optimized wicks, the full picture is still blurry due...
Citation Formats
IEEE
ACM
APA
CHICAGO
MLA
BibTeX
S. Toraman, A. Mehrabov, and M. V. Akdeniz, “Design and Development of Ni Based Heusler Alloys for Magnetic Refrigeration,” İstanbul, Türkiye, 2016, p. 774, Accessed: 00, 2021. [Online]. Available: http://www1.metalurji.org.tr/immc2016/IMMC2016_Bildiriler.pdf.