Macro-scale complexity of nano- to micro-scale architecture of olivine crystals through an iodine vapour transport mechanism

Raymond L D Whitby, Takahiro Fukuda, Toru Maekawa

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

The production of nano- to micro-scale olivine (magnesium and iron silicate) crystals has been achieved at relatively low temperatures through an iodine vapour transport of the metal onto amorphous silicon dioxide. The process occurs down a temperature gradient from 800 to 600 ?C yielding high quality crystals with long range crystallinity, highly complex interconnectivity and intricate macroscale architecture. Scanning electron microscopy (SEM) imaging of the substrate before and after the reaction reveals that the amorphous silicon oxide species is mobile, due to the lack of correlation between the silicon oxide layer and the final olivine particles, leading to a vapour-liquid-solid or vapour-solid growth mechanism. This technique demonstrates a facile, low temperature synthetic route towards olivine crystals with nano- to micro-scale dimensions.

Original languageEnglish
Pages (from-to)239-245
Number of pages7
JournalBulletin of Materials Science
Volume37
Issue number2
Publication statusPublished - 2014
Externally publishedYes

Fingerprint

Olivine
Iodine
Macros
Vapors
Silicon oxides
Amorphous silicon
Crystals
Thermal gradients
Silicates
Magnesium
Silica
Silicon Dioxide
Iron
Imaging techniques
Temperature
Scanning electron microscopy
Metals
Liquids
Substrates
olivine

Keywords

  • Architecture
  • Fayalite
  • Forsterite
  • Iodine vapour transport
  • Nanocrystals

ASJC Scopus subject areas

  • Materials Science(all)
  • Mechanics of Materials

Cite this

Macro-scale complexity of nano- to micro-scale architecture of olivine crystals through an iodine vapour transport mechanism. / Whitby, Raymond L D; Fukuda, Takahiro; Maekawa, Toru.

In: Bulletin of Materials Science, Vol. 37, No. 2, 2014, p. 239-245.

Research output: Contribution to journalArticle

@article{2f273a5382444b949858729caf43ea53,
title = "Macro-scale complexity of nano- to micro-scale architecture of olivine crystals through an iodine vapour transport mechanism",
abstract = "The production of nano- to micro-scale olivine (magnesium and iron silicate) crystals has been achieved at relatively low temperatures through an iodine vapour transport of the metal onto amorphous silicon dioxide. The process occurs down a temperature gradient from 800 to 600 ?C yielding high quality crystals with long range crystallinity, highly complex interconnectivity and intricate macroscale architecture. Scanning electron microscopy (SEM) imaging of the substrate before and after the reaction reveals that the amorphous silicon oxide species is mobile, due to the lack of correlation between the silicon oxide layer and the final olivine particles, leading to a vapour-liquid-solid or vapour-solid growth mechanism. This technique demonstrates a facile, low temperature synthetic route towards olivine crystals with nano- to micro-scale dimensions.",
keywords = "Architecture, Fayalite, Forsterite, Iodine vapour transport, Nanocrystals",
author = "Whitby, {Raymond L D} and Takahiro Fukuda and Toru Maekawa",
year = "2014",
language = "English",
volume = "37",
pages = "239--245",
journal = "Bulletin of Materials Science",
issn = "0250-4707",
publisher = "Indian Academy of Sciences",
number = "2",

}

TY - JOUR

T1 - Macro-scale complexity of nano- to micro-scale architecture of olivine crystals through an iodine vapour transport mechanism

AU - Whitby, Raymond L D

AU - Fukuda, Takahiro

AU - Maekawa, Toru

PY - 2014

Y1 - 2014

N2 - The production of nano- to micro-scale olivine (magnesium and iron silicate) crystals has been achieved at relatively low temperatures through an iodine vapour transport of the metal onto amorphous silicon dioxide. The process occurs down a temperature gradient from 800 to 600 ?C yielding high quality crystals with long range crystallinity, highly complex interconnectivity and intricate macroscale architecture. Scanning electron microscopy (SEM) imaging of the substrate before and after the reaction reveals that the amorphous silicon oxide species is mobile, due to the lack of correlation between the silicon oxide layer and the final olivine particles, leading to a vapour-liquid-solid or vapour-solid growth mechanism. This technique demonstrates a facile, low temperature synthetic route towards olivine crystals with nano- to micro-scale dimensions.

AB - The production of nano- to micro-scale olivine (magnesium and iron silicate) crystals has been achieved at relatively low temperatures through an iodine vapour transport of the metal onto amorphous silicon dioxide. The process occurs down a temperature gradient from 800 to 600 ?C yielding high quality crystals with long range crystallinity, highly complex interconnectivity and intricate macroscale architecture. Scanning electron microscopy (SEM) imaging of the substrate before and after the reaction reveals that the amorphous silicon oxide species is mobile, due to the lack of correlation between the silicon oxide layer and the final olivine particles, leading to a vapour-liquid-solid or vapour-solid growth mechanism. This technique demonstrates a facile, low temperature synthetic route towards olivine crystals with nano- to micro-scale dimensions.

KW - Architecture

KW - Fayalite

KW - Forsterite

KW - Iodine vapour transport

KW - Nanocrystals

UR - http://www.scopus.com/inward/record.url?scp=84899953076&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84899953076&partnerID=8YFLogxK

M3 - Article

VL - 37

SP - 239

EP - 245

JO - Bulletin of Materials Science

JF - Bulletin of Materials Science

SN - 0250-4707

IS - 2

ER -