Crystal growth and mechanical characterization of ZrMo2O8

Md Imteyaz Ahmad; Gaurav Mohanty; Krishna Rajan; Mufit Akinc

doi:10.1016/j.jcrysgro.2014.07.004

Crystal growth and mechanical characterization of ZrMo₂O₈

Md Imteyaz Ahmad
, Gaurav Mohanty
, Krishna Rajan
, Mufit Akinc

Department of Materials Design and Innovation

Iowa State University
MS 69

Research output: Contribution to journal › Article › peer-review

6 Scopus citations

Abstract

We report a fluxing technique for ZrMo₂O₈single crystal growth. The volatility of MoO₃coupled with the limited temperature range of its stability with the liquid phase makes the single crystal growth of ZrMo₂O₈a formidable challenge. Single crystal growth of ZrMo₂O₈was carried out in a horizontal tubular furnace using a platinum boat and utilizing Li₂MoO₄as a fluxing agent. The synthesized faceted crystals were up to 3 mm along the maximum dimension. Laue and single crystal X-ray diffraction confirmed the monoclinic crystal structure having a space group C 1 2/c 1 (S.G#15), and a single crystallographic domain within the crystals. Reduced elastic modulus and hardness were determined to be 108±4 GPa and 6.4±0.2 GPa respectively using nanoindentation. Appearance of additional peaks in Raman spectra of the indented region when compared with the fresh crystal indicated a possible pressure induced phase transformation during indentation.

Original language	English
Pages (from-to)	100-106
Number of pages	7
Journal	Journal of Crystal Growth
Volume	404
DOIs	https://doi.org/10.1016/j.jcrysgro.2014.07.004
State	Published - 2014

Keywords

A1. Characterization
A1. Crystal structure
A1. Phase diagrams
A1. X-ray diffraction
A2. Growth from melt
A2. Single crystal growth

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10.1016/j.jcrysgro.2014.07.004

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title = "Crystal growth and mechanical characterization of ZrMo2O8",

abstract = "We report a fluxing technique for ZrMo2O8single crystal growth. The volatility of MoO3coupled with the limited temperature range of its stability with the liquid phase makes the single crystal growth of ZrMo2O8a formidable challenge. Single crystal growth of ZrMo2O8was carried out in a horizontal tubular furnace using a platinum boat and utilizing Li2MoO4as a fluxing agent. The synthesized faceted crystals were up to 3 mm along the maximum dimension. Laue and single crystal X-ray diffraction confirmed the monoclinic crystal structure having a space group C 1 2/c 1 (S.G\#15), and a single crystallographic domain within the crystals. Reduced elastic modulus and hardness were determined to be 108±4 GPa and 6.4±0.2 GPa respectively using nanoindentation. Appearance of additional peaks in Raman spectra of the indented region when compared with the fresh crystal indicated a possible pressure induced phase transformation during indentation.",

keywords = "A1. Characterization, A1. Crystal structure, A1. Phase diagrams, A1. X-ray diffraction, A2. Growth from melt, A2. Single crystal growth",

author = "Ahmad, \{Md Imteyaz\} and Gaurav Mohanty and Krishna Rajan and Mufit Akinc",

note = "Publisher Copyright: {\textcopyright} 2014 Elsevier B.V.",

year = "2014",

doi = "10.1016/j.jcrysgro.2014.07.004",

language = "English",

volume = "404",

pages = "100--106",

journal = "Journal of Crystal Growth",

issn = "0022-0248",

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TY - JOUR

T1 - Crystal growth and mechanical characterization of ZrMo2O8

AU - Ahmad, Md Imteyaz

AU - Mohanty, Gaurav

AU - Rajan, Krishna

AU - Akinc, Mufit

PY - 2014

Y1 - 2014

N2 - We report a fluxing technique for ZrMo2O8single crystal growth. The volatility of MoO3coupled with the limited temperature range of its stability with the liquid phase makes the single crystal growth of ZrMo2O8a formidable challenge. Single crystal growth of ZrMo2O8was carried out in a horizontal tubular furnace using a platinum boat and utilizing Li2MoO4as a fluxing agent. The synthesized faceted crystals were up to 3 mm along the maximum dimension. Laue and single crystal X-ray diffraction confirmed the monoclinic crystal structure having a space group C 1 2/c 1 (S.G#15), and a single crystallographic domain within the crystals. Reduced elastic modulus and hardness were determined to be 108±4 GPa and 6.4±0.2 GPa respectively using nanoindentation. Appearance of additional peaks in Raman spectra of the indented region when compared with the fresh crystal indicated a possible pressure induced phase transformation during indentation.

AB - We report a fluxing technique for ZrMo2O8single crystal growth. The volatility of MoO3coupled with the limited temperature range of its stability with the liquid phase makes the single crystal growth of ZrMo2O8a formidable challenge. Single crystal growth of ZrMo2O8was carried out in a horizontal tubular furnace using a platinum boat and utilizing Li2MoO4as a fluxing agent. The synthesized faceted crystals were up to 3 mm along the maximum dimension. Laue and single crystal X-ray diffraction confirmed the monoclinic crystal structure having a space group C 1 2/c 1 (S.G#15), and a single crystallographic domain within the crystals. Reduced elastic modulus and hardness were determined to be 108±4 GPa and 6.4±0.2 GPa respectively using nanoindentation. Appearance of additional peaks in Raman spectra of the indented region when compared with the fresh crystal indicated a possible pressure induced phase transformation during indentation.

KW - A1. Characterization

KW - A1. Crystal structure

KW - A1. Phase diagrams

KW - A1. X-ray diffraction

KW - A2. Growth from melt

KW - A2. Single crystal growth

UR - https://www.scopus.com/pages/publications/84904905893

U2 - 10.1016/j.jcrysgro.2014.07.004

DO - 10.1016/j.jcrysgro.2014.07.004

M3 - Article

AN - SCOPUS:84904905893

SN - 0022-0248

VL - 404

SP - 100

EP - 106

JO - Journal of Crystal Growth

JF - Journal of Crystal Growth

ER -

Crystal growth and mechanical characterization of ZrMo₂O₈

Abstract

Keywords

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