High throughput discovery of new fouling-resistant surfaces

Zhou, Mingyan; Liu, Hongwei; Venkiteshwaran, Adith; Kilduff, James E.; Anderson, Daniel G.; Langer, Robert; Belfort, Georges

doi:10.1039/c0jm01266a

Cited by 70 publications

(81 citation statements)

References 68 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…We found [58][59][60][61] that in this case the Maxwell relation could yield a spurious S peak in the vicinity of the Curie temperature T C (H=0). Besides the phase coexistence, some other important factors may have great influence on the MCE evaluation in the vicinity of first-order phase transition.…”

Section: Mce In the Vicinity Of The First-order Phase Transitionmentioning

confidence: 99%

Recent Progress in Exploring Magnetocaloric Materials

et al. 2009

View full text Add to dashboard Cite

Magnetic refrigeration based on the magnetocaloric effect (MCE) of materials is a potential technique that has prominet advantages over the currently used gas compression-expansion technique in the sense of its high efficiency and environment friendship. In this article, our recent progress in explorating effective MCE materials is reviewed with the emphasis on the MCE in the LaFe 13-x Si x -based alloys with a first order magnetic transition discovered by us. These alloys show large entropy changes in a wide temperature range near room temperature. Effects of magnetic rare-earth doping, interstitial atom, and high pressure on the MCE have been systematically studied. Special issues such as appropriate approaches to determining the MCE associated with the first-order magnetic transition, the depression of magnetic and thermal hystereses, and the key factors determining the magnetic exchange in alloys of this kind are discussed. The applicability of the giant MCE materials to the magnetic refrigeration near ambient temperature is evaluated. A brief review of other materials with significant MCE is also presented in the article.

show abstract

Section: Mce In the Vicinity Of The First-order Phase Transitionmentioning

confidence: 99%

Recent Progress in Exploring Magnetocaloric Materials

et al. 2009

View full text Add to dashboard Cite

show abstract

“…Typically the MCE can be derived from magnetic measurements with the use of the Maxwell relation, but the reliability of this procedure in the case of first order transitions is controversial [15,16]. Therefore, for our system, calorimetric measurements made with a differential scanning calorimetry (DSC) have also been made to directly obtain the latent heat and the entropy change [17,11].…”

Section: Entropy Change Determined From Calorimetric and Magnetic Meamentioning

confidence: 99%

A pathway to optimize the properties of magnetocaloric Mn2-xFexP1-yGey for magnetic refrigeration

Liu

Zhang

Zhou

et al. 2016

Journal of Alloys and Compounds

View full text Add to dashboard Cite

Magnetocaloric materials can be useful in magnetic refrigeration applications, but to be practical the magneto-refrigerant needs to have a very large magnetocaloric effect (MCE) near room temperature for modest applied fields (<2 Tesla) with small hysteresis and magnetostriction, and should have a complete magnetic transition, be inexpensive, and environmentally friendly. One system that may fulfill these requirements is Mn x Fe 2-x P 1-y Ge y , where a combined first-order structural and magnetic transition occurs between the high temperature paramagnetic and low temperature ferromagnetic phase. We have used neutron diffraction, differential scanning calorimetry, and magnetization measurements to study the effects of Mn and Ge location in the structure on the ordered magnetic moment, MCE, and hysteresis for a series of compositions of the system near optimal doping. The diffraction results indicate that the Mn ions located on the 3f site enhance the desirable properties, while those located on the 3g sites are detrimental. The entropy changes measured directly by calorimetry can exceed 40 J/kg·K. The phase fraction that transforms, hysteresis of the transition, and entropy change can be controlled by both the compositional homogeneity and the particle size, and an annealing procedure has been developed that substantially improves the performance of all three properties of the material. On the basis of these results we have identified a pathway to optimize the MCE properties of this system for magnetic refrigeration applications.

show abstract

“…While this provides a fast and easy procedure to quantify a caloric effect, there has been considerable controversy on whether or not the method can be applied to first-order phase transitions [20][21][22][23][24] .…”

Section: Experimental Determination Of the Caloric Effectsmentioning

confidence: 99%

Advanced materials for solid-state refrigeration

2013

View full text Add to dashboard Cite

Recent progress on caloric effects are reviewed. The application of external stimuli such as magnetic field, hydrostatic pressure, uniaxial stress and electric field give rise respectively to magnetocaloric, barocaloric, elastocaloric and electrocaloric effects. The values of the relevant quantities such as isothermal entropy and adiabatic temperature-changes are compiled for selected materials. Large values for these quantities are found when the material is in the vicinity of a phase transition. Quite often there is coupling between different degrees of freedom, and the material can exhibit cross-response to different external fields. In this case, the material can exhibit either conventional or inverse caloric effects when a field is applied. The values reported for the many caloric effects at moderate fields are large enough to envisage future application of these materials in efficient and environmental friendly refrigeration.

show abstract

High throughput discovery of new fouling-resistant surfaces

Cited by 70 publications

References 68 publications

Recent Progress in Exploring Magnetocaloric Materials

Recent Progress in Exploring Magnetocaloric Materials

A pathway to optimize the properties of magnetocaloric Mn2-xFexP1-yGey for magnetic refrigeration

Advanced materials for solid-state refrigeration

Contact Info

Product

Resources

About