Short range order in Ni4Mo and its high resolution electron microscope images

Satoshi Hata, Syo Matsumura, N. Kuwano, K. Oki, D. Shindo

Research output: Contribution to journalArticle

13 Citations (Scopus)

Abstract

The short range ordered (SRO) structure in Ni4Mo has been investigated by means of high resolution transmission electron microscopy with digital image processing and Monte Carlo simulation. High resolution transmission electron microscope (HRTEM) images were recorded with an Imaging Plate (IP) system. Conventionally printed images of the SRO state exhibit locally dot patterns corresponding to N2M2-type (chalcopyrite-like) structure. However, the dot patterns transform into those of subunit cell clusters of D1a, D022 and Pt2Mo structures, when the image is output with a different gray scale. The Monte Carlo simulation with appropriate interaction parameters of atoms has explained successfully the HRTEM images. It is concluded that the SRO state in Ni4Mo involves subunit cell clusters of D1a, D022 and Pt2Mo structures in the atomistic level of microstructure. The concept of 〈11/20〉* static concentration waves corresponding to the N2M2 pattern is rationalized as a mesoscopically averaging view of the SRO state.

Original languageEnglish
Pages (from-to)4955-4961
Number of pages7
JournalActa Materialia
Volume46
Issue number14
DOIs
Publication statusPublished - Sep 1 1998

Fingerprint

Electron microscopes
High resolution transmission electron microscopy
Image processing
Imaging techniques
Atoms
Microstructure
Monte Carlo simulation
chalcopyrite

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Ceramics and Composites
  • Polymers and Plastics
  • Metals and Alloys

Cite this

Short range order in Ni4Mo and its high resolution electron microscope images. / Hata, Satoshi; Matsumura, Syo; Kuwano, N.; Oki, K.; Shindo, D.

In: Acta Materialia, Vol. 46, No. 14, 01.09.1998, p. 4955-4961.

Research output: Contribution to journalArticle

Hata, Satoshi ; Matsumura, Syo ; Kuwano, N. ; Oki, K. ; Shindo, D. / Short range order in Ni4Mo and its high resolution electron microscope images. In: Acta Materialia. 1998 ; Vol. 46, No. 14. pp. 4955-4961.
@article{36681bb895de457a97cc2400576b56d5,
title = "Short range order in Ni4Mo and its high resolution electron microscope images",
abstract = "The short range ordered (SRO) structure in Ni4Mo has been investigated by means of high resolution transmission electron microscopy with digital image processing and Monte Carlo simulation. High resolution transmission electron microscope (HRTEM) images were recorded with an Imaging Plate (IP) system. Conventionally printed images of the SRO state exhibit locally dot patterns corresponding to N2M2-type (chalcopyrite-like) structure. However, the dot patterns transform into those of subunit cell clusters of D1a, D022 and Pt2Mo structures, when the image is output with a different gray scale. The Monte Carlo simulation with appropriate interaction parameters of atoms has explained successfully the HRTEM images. It is concluded that the SRO state in Ni4Mo involves subunit cell clusters of D1a, D022 and Pt2Mo structures in the atomistic level of microstructure. The concept of 〈11/20〉* static concentration waves corresponding to the N2M2 pattern is rationalized as a mesoscopically averaging view of the SRO state.",
author = "Satoshi Hata and Syo Matsumura and N. Kuwano and K. Oki and D. Shindo",
year = "1998",
month = "9",
day = "1",
doi = "10.1016/S1359-6454(98)00180-3",
language = "English",
volume = "46",
pages = "4955--4961",
journal = "Acta Materialia",
issn = "1359-6454",
publisher = "Elsevier Limited",
number = "14",

}

TY - JOUR

T1 - Short range order in Ni4Mo and its high resolution electron microscope images

AU - Hata, Satoshi

AU - Matsumura, Syo

AU - Kuwano, N.

AU - Oki, K.

AU - Shindo, D.

PY - 1998/9/1

Y1 - 1998/9/1

N2 - The short range ordered (SRO) structure in Ni4Mo has been investigated by means of high resolution transmission electron microscopy with digital image processing and Monte Carlo simulation. High resolution transmission electron microscope (HRTEM) images were recorded with an Imaging Plate (IP) system. Conventionally printed images of the SRO state exhibit locally dot patterns corresponding to N2M2-type (chalcopyrite-like) structure. However, the dot patterns transform into those of subunit cell clusters of D1a, D022 and Pt2Mo structures, when the image is output with a different gray scale. The Monte Carlo simulation with appropriate interaction parameters of atoms has explained successfully the HRTEM images. It is concluded that the SRO state in Ni4Mo involves subunit cell clusters of D1a, D022 and Pt2Mo structures in the atomistic level of microstructure. The concept of 〈11/20〉* static concentration waves corresponding to the N2M2 pattern is rationalized as a mesoscopically averaging view of the SRO state.

AB - The short range ordered (SRO) structure in Ni4Mo has been investigated by means of high resolution transmission electron microscopy with digital image processing and Monte Carlo simulation. High resolution transmission electron microscope (HRTEM) images were recorded with an Imaging Plate (IP) system. Conventionally printed images of the SRO state exhibit locally dot patterns corresponding to N2M2-type (chalcopyrite-like) structure. However, the dot patterns transform into those of subunit cell clusters of D1a, D022 and Pt2Mo structures, when the image is output with a different gray scale. The Monte Carlo simulation with appropriate interaction parameters of atoms has explained successfully the HRTEM images. It is concluded that the SRO state in Ni4Mo involves subunit cell clusters of D1a, D022 and Pt2Mo structures in the atomistic level of microstructure. The concept of 〈11/20〉* static concentration waves corresponding to the N2M2 pattern is rationalized as a mesoscopically averaging view of the SRO state.

UR - http://www.scopus.com/inward/record.url?scp=0032157002&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0032157002&partnerID=8YFLogxK

U2 - 10.1016/S1359-6454(98)00180-3

DO - 10.1016/S1359-6454(98)00180-3

M3 - Article

VL - 46

SP - 4955

EP - 4961

JO - Acta Materialia

JF - Acta Materialia

SN - 1359-6454

IS - 14

ER -