Sol–gel synthesis of doped Cu2V2O7 fine particles showing giant negative thermal expansion

Sol–gel synthesis of doped Cu2V2O7 fine particles showing giant negative thermal expansion

We report the sol–gel synthesis of Cu2V2O7 fine particles, in which some of the constituent Cu is replaced with other elements. The sintered body of Zn substituted β-Cu1.8Zn0.2V2O7 shows a large negative thermal expansion (NTE) over a wide temperature range due to microstructural effects peculiar to...

Full description

Bibliographic Details
Main Authors: M. Sato, V. Warne-Lang, Y. Kadowaki, N. Katayama, Y. Okamoto, K. Takenaka
Format: Article
Language:English
Published: AIP Publishing LLC 2020-07-01
Series:AIP Advances
Online Access:http://dx.doi.org/10.1063/5.0010631
id doaj-77b18bcd721d4f359c74d072d251126f
record_format Article
spelling doaj-77b18bcd721d4f359c74d072d251126f2020-11-25T03:46:33ZengAIP Publishing LLCAIP Advances2158-32262020-07-01107075207075207-610.1063/5.0010631Sol–gel synthesis of doped Cu2V2O7 fine particles showing giant negative thermal expansionM. Sato0V. Warne-Lang1Y. Kadowaki2N. Katayama3Y. Okamoto4K. Takenaka5Department of Applied Physics, Nagoya University, Nagoya 464-8603, JapanDepartment of Applied Physics, Nagoya University, Nagoya 464-8603, JapanDepartment of Applied Physics, Nagoya University, Nagoya 464-8603, JapanDepartment of Applied Physics, Nagoya University, Nagoya 464-8603, JapanDepartment of Applied Physics, Nagoya University, Nagoya 464-8603, JapanDepartment of Applied Physics, Nagoya University, Nagoya 464-8603, JapanWe report the sol–gel synthesis of Cu2V2O7 fine particles, in which some of the constituent Cu is replaced with other elements. The sintered body of Zn substituted β-Cu1.8Zn0.2V2O7 shows a large negative thermal expansion (NTE) over a wide temperature range due to microstructural effects peculiar to a ceramic body. Using the sol–gel method, we successfully produced β-Cu1.8Zn0.2V2O7 ceramic fine particles that retain the same level of thermal expansion suppression capabilities as the bulk with a size of about 1 μm. We also succeeded in performing rare earth metal (Ce, Sm, Yb) substitutions, which might be a clue for improving NTE performance. These achievements provide particulate filler for thermal expansion control of a micrometer region, which has been earnestly sought in many fields of technology.http://dx.doi.org/10.1063/5.0010631
collection DOAJ
language English
format Article
sources DOAJ
author M. Sato
V. Warne-Lang
Y. Kadowaki
N. Katayama
Y. Okamoto
K. Takenaka
spellingShingle M. Sato
V. Warne-Lang
Y. Kadowaki
N. Katayama
Y. Okamoto
K. Takenaka
Sol–gel synthesis of doped Cu2V2O7 fine particles showing giant negative thermal expansion
AIP Advances
author_facet M. Sato
V. Warne-Lang
Y. Kadowaki
N. Katayama
Y. Okamoto
K. Takenaka
author_sort M. Sato
title Sol–gel synthesis of doped Cu2V2O7 fine particles showing giant negative thermal expansion
title_short Sol–gel synthesis of doped Cu2V2O7 fine particles showing giant negative thermal expansion
title_full Sol–gel synthesis of doped Cu2V2O7 fine particles showing giant negative thermal expansion
title_fullStr Sol–gel synthesis of doped Cu2V2O7 fine particles showing giant negative thermal expansion
title_full_unstemmed Sol–gel synthesis of doped Cu2V2O7 fine particles showing giant negative thermal expansion
title_sort sol–gel synthesis of doped cu2v2o7 fine particles showing giant negative thermal expansion
publisher AIP Publishing LLC
series AIP Advances
issn 2158-3226
publishDate 2020-07-01
description We report the sol–gel synthesis of Cu2V2O7 fine particles, in which some of the constituent Cu is replaced with other elements. The sintered body of Zn substituted β-Cu1.8Zn0.2V2O7 shows a large negative thermal expansion (NTE) over a wide temperature range due to microstructural effects peculiar to a ceramic body. Using the sol–gel method, we successfully produced β-Cu1.8Zn0.2V2O7 ceramic fine particles that retain the same level of thermal expansion suppression capabilities as the bulk with a size of about 1 μm. We also succeeded in performing rare earth metal (Ce, Sm, Yb) substitutions, which might be a clue for improving NTE performance. These achievements provide particulate filler for thermal expansion control of a micrometer region, which has been earnestly sought in many fields of technology.
url http://dx.doi.org/10.1063/5.0010631
work_keys_str_mv AT msato solgelsynthesisofdopedcu2v2o7fineparticlesshowinggiantnegativethermalexpansion
AT vwarnelang solgelsynthesisofdopedcu2v2o7fineparticlesshowinggiantnegativethermalexpansion
AT ykadowaki solgelsynthesisofdopedcu2v2o7fineparticlesshowinggiantnegativethermalexpansion
AT nkatayama solgelsynthesisofdopedcu2v2o7fineparticlesshowinggiantnegativethermalexpansion
AT yokamoto solgelsynthesisofdopedcu2v2o7fineparticlesshowinggiantnegativethermalexpansion
AT ktakenaka solgelsynthesisofdopedcu2v2o7fineparticlesshowinggiantnegativethermalexpansion
_version_ 1724505618568445952

Similar Items