TITLE

Temperature-induced phase separation in chromium films

AUTHOR(S)
Saraf, Laxmikant; Wang, Chongmin; Engelhard, Mark H.; Baer, Donald R.
PUB. DATE
April 2003
SOURCE
Applied Physics Letters;4/7/2003, Vol. 82 Issue 14, p2230
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
Vacuum evaporation of chromium on Si(100) results in an interfacial nanophase layer followed by a mixed grain region. In this work, the mixed grain region in chromium is nearly transformed into a single-phase region, which resulted in a maximum phase separation between the nano-δ-A15 phase and bulk α-bcc chromium. It is achieved by creating a temperature gradient across the chromium-silicon interface by using rapid evaporation at a growth rate of ∼3 μm/min at a source-to-substrate (SS) distance of 2 cm. Separately grown nanophase chromium films at SS distance of 32 cm show a predominant δ-A15 phase. Short-SS-distance rapid evaporation has the potential to produce selective phase separation by combining the temperature gradient with interfacial stress.
ACCESSION #
9428300

 

Related Articles

  • Effect of Pulse Frequency on the Deposition of Cu-Fe Alloy via Pulsed Current Electrodeposition Method. Setiawan, Asep Ridwan; Ramelan, Aditianto; Nuruddin, Ahmad; Hasanah, Indah Uswatun // Key Engineering Materials;2017, Vol. 728, p111 

    In an attempt to reduce the oxidation and Cr evaporation rates of solid oxide fuel cells (SOFCs) interconnect, Cu-Fe coating was developed on the AISI 430 ferritic stainless steel substrate by a pulsed current electrodeposition method. Effects of pulse frequency on properties and performance of...

  • Chromia Evaporation of Ferritic Stainless Steel AISI430 Coated by (La,Sr)CrO3 Perovskite and Mn-Co Spinel. Siripongsakula, Thamrongsin; Thublaorb, Tummaporn; Prajakesakulc, Vatit; Kachaband, Sorana; Chandra-ambhorne, Somrerk // Key Engineering Materials;2017, Vol. 728, p166 

    A ferritic stainless steel has been intensively studied for its potential in application as an interconnect for a solid oxide fuel cell (SOFC). However, at such a high operating temperature chromia in the gaseous phase can contaminate the cathode of the SOFC, and consequently the performance of...

  • A Correction Approach to the Common Pb Contribution to [sup207]Pb/[sup206]Pb Ratios Obtained by the Zircon Evaporation Technique. Chen Fukun // Chinese Journal of Geochemistry;2001, Vol. 20 Issue 2, p189 

    Presents an approach for the correction of common lead contribution to [sup 207]lead/[sup 206]lead ages obtained by the zircon evaporation technique. Basis for the stepwise evaporation method for zircon dating; Outline of the evaporation technique.

  • Wastewater Evaporation 101. Fink, Ronald G.; Hart, James // Pollution Engineering;Sep2001, Vol. 33 Issue 8, p15 

    Focuses on the process of wastewater evaporation in the United States. Use of thermo oxidizer flash evaporation in industrial wastewater evaporation; Utilization of a ceramic chamber to flash evaporate atomized wastewater in a dry chamber; Comparison of the process to traditional wastewater...

  • Water Works on the Blue Planet. Fisher, Diane // Technology Teacher;Sep2001, Vol. 61 Issue 1, p14 

    Discusses the process of water distribution. Discussion about the water cycle; Definition of evaporation and transpiration; Activity recommended to illustrate water cycle.

  • Validation of Selected Models for Evaporation Estimation from Reservoirs Located in Arid and Semi-Arid Regions. Benzaghta, Mostafa; Mohammed, Thamer; Ghazali, Abdul; Soom, Mohd // Arabian Journal for Science & Engineering (Springer Science & Bu;Apr2012, Vol. 37 Issue 3, p521 

    This paper investigates evaporation at Algardabiya Reservoir, Sirte, Libya. Evaporation from Algardabiya Reservoir is the main problem faced which contributes in water loss. Libya is considered as arid region with limited water resources. Modeling of evaporation from the reservoir is crucial for...

  • Stayin' in the Loop.  // High Plains Journal;5/27/2013, Vol. 131 Issue 21, p16B 

    The article offers suggestions for protecting horses from heat stress including spraying of water on the body and legs of horses in order to increase evaporation, limiting free access to water when they are hot and providing proper ventilation.

  • On the questionable, and perhaps lost, art of curing concrete. Hover, Kenneth C. // Concrete Construction;Jun2007, Vol. 52 Issue 6, p54 

    The article answers several questions relevant to concrete construction. Curing in concrete construction involves specific requirements to minimize shrinkage and maximize surface durability. The best way to measure evaporation rate when placing concrete slabs is to use a standard weather bureau...

  • Evaluation of Daytime Evaporative Fraction from MODIS TOA Radiances Using FLUXNET Observations. Jian Peng; Loew, Alexander // Remote Sensing;Jul2014, Vol. 6 Issue 7, p5959 

    In recent decades, the land surface temperature/vegetation index (LST/NDVI) feature space has been widely used to estimate actual evapotranspiration (ETa) or evaporative fraction (EF, defined as the ratio of latent heat flux to surface available energy). Traditionally, it is essential to...

  • Today's Lesson: Drying (Part 1). Bozzeli, John // Plastics Technology;Nov2009, Vol. 55 Issue 11, p19 

    The article focuses on the importance of drying plastic before processing. It cites the chemical reaction caused by water that can make long polymer chains shorter. The need for molders to ensure that the dryer works to prevent processing problems, as moisture often influences viscosity is also...

Share

Read the Article

Courtesy of VIRGINIA BEACH PUBLIC LIBRARY AND SYSTEM

Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics