EMC Abstracts

Official abstracts site for the European Microscopy Congress

MENU 
  • Home
  • Meetings Archive
    • The 16th European Microscopy Congress 2016
  • Keyword Index
  • Your Favorites
    • Favorites
    • Login
    • Register
    • View and Print All Favorites
    • Clear all your favorites
  • Advanced Search

Nanograin formation due to premelting in free-standing thin films

Abstract number: 5872

Session Code: IM02-200

DOI: 10.1002/9783527808465.EMC2016.5872

Meeting: The 16th European Microscopy Congress 2016

Session: Instrumentation and Methods

Topic: Micro-Nano Lab and dynamic microscopy

Presentation Form: Poster

Corresponding Email: poojar@iitk.ac.in

Pooja Rani (1), Anandh Subramaniam (1), RAGHVENDRA TEWARI (2), Bathula Vishwanadh (2), Somnath Bhattacharyya (3)

1. Material Science and Engineering, Indian Institute of Technology Kanpur, Kanpur, Inde 2. Materials Science Division, Bhabha Atomic Research Centre, Trombay, Mumbai, Mumbai, Inde 3. Metallurgical and Materials Engineering, Indian Institute of Technology Madras, Chennai, Chennai, Inde

Keywords: nanograin formation, surface premelting, transmission electron microscopy

The melting point of metals decreases on the formation of nano-crystals. Premelting of surfaces and grain boundaries has also been reported. The current study pertains to annealing of solutionized Cu-2wt.%Fe alloy thin film samples in the temperature regime of 200-300°C. Transmission electron microscopy specimens have been used as free-standing thin films and the annealing of the samples are performed by two methods: (i) in-situ in a TEM, (ii) ex-situ after sealing the samples in vacuum. In the in-situ annealing treatment the power to the heater was switched off after annealing, while the ex-situ samples were quenched in water. Formation of nanocrystals with grain size of about 6 to 10 nm is observed in both kinds of samples after annealing and is occurs after 10 minutes of annealing at 250°C in the in-situ sample. Given that the solidus temperature of the alloy is 1064°C, these observations represent fast changes in a short period of time. We postulate that the samples have undergone surface premelting followed by solidification. Due to rapid quenching of the molten layer on the substrate of the same materials, nano-crystals on the surface are observed

Figures:

In-Situ TEM image of Nanograins of Cu2wt%Fe free standing thin Film at 200C

To cite this abstract:

Pooja Rani, Anandh Subramaniam, RAGHVENDRA TEWARI, Bathula Vishwanadh, Somnath Bhattacharyya; Nanograin formation due to premelting in free-standing thin films. The 16th European Microscopy Congress, Lyon, France. https://emc-proceedings.com/abstract/nanograin-formation-due-to-premelting-in-free-standing-thin-films/. Accessed: September 21, 2023
  • Tweet
  • Email
  • Print
Save to PDF

« Back to The 16th European Microscopy Congress 2016

EMC Abstracts - https://emc-proceedings.com/abstract/nanograin-formation-due-to-premelting-in-free-standing-thin-films/

Most Viewed Abstracts

  • mScarlet, a novel high quantum yield (71%) monomeric red fluorescent protein with enhanced properties for FRET- and super resolution microscopy
  • 3D structure and chemical composition reconstructed simultaneously from HAADF-STEM images and EDS-STEM maps
  • Layer specific optical band gap measurement at nanoscale in MoS2 and ReS2 van der Waals compounds by high resolution electron energy loss spectroscopy
  • Pixelated STEM detectors: opportunities and challenges
  • Developments in unconventional dark field TEM for characterising nanocatalyst systems

Your Favorites

You can save and print a list of your favorite abstracts by clicking the “Favorite” button at the bottom of any abstract. View your favorites »

Visit Our Partner Sites

The 16th European Microscopy Congress

The official web site of the 16th European Microscopy Congress.

European Microscopy Society

European Microscopy Society logoThe European Microscopy Society (EMS) is committed to promoting the use and the quality of advanced microscopy in all its aspects in Europe.

International Federation of Societies for Microscopy

International Federation of Societies for Microscopy logoThe IFSM aims to contribute to the advancement of microscopy in all its aspects.

Société Française des Microscopies

Société Française des MicroscopiesThe Sfµ is a multidisciplinary society which aims to improve and spread the knowledge about Microscopy.

Connect with us

Imaging & Microscopy
Official Media Partner of the European Microscopy Society.

  • Help & Support
  • About Us
  • Cookie Preferences
  • Cookies & Privacy
  • Wiley Job Network
  • Terms & Conditions
  • Advertisers & Agents
Copyright © 2023 John Wiley & Sons, Inc. All Rights Reserved.
Wiley