Cargando…

A Performance-Enhanced Liquid Metal-Based Microheater with Parallel Ventilating Side-Channels

Gallium-based liquid metal can be used as a material for microheaters because it can be easily filled into microchannels and electrified to generate Joule heat, but the liquid metal-based microheater will suffer breakage induced by voids forming within the liquid metal when the temperature normally...

Descripción completa

Detalles Bibliográficos
Autores principales: Zhang, Lunjia, Zhang, Pan, Wang, Ronghang, Zhang, Renchang, Li, Zhenming, Liu, Wei, Wang, Qifu, Gao, Meng, Gui, Lin
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2020
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7074615/
https://www.ncbi.nlm.nih.gov/pubmed/31991611
http://dx.doi.org/10.3390/mi11020133
_version_ 1783506874570637312
author Zhang, Lunjia
Zhang, Pan
Wang, Ronghang
Zhang, Renchang
Li, Zhenming
Liu, Wei
Wang, Qifu
Gao, Meng
Gui, Lin
author_facet Zhang, Lunjia
Zhang, Pan
Wang, Ronghang
Zhang, Renchang
Li, Zhenming
Liu, Wei
Wang, Qifu
Gao, Meng
Gui, Lin
author_sort Zhang, Lunjia
collection PubMed
description Gallium-based liquid metal can be used as a material for microheaters because it can be easily filled into microchannels and electrified to generate Joule heat, but the liquid metal-based microheater will suffer breakage induced by voids forming within the liquid metal when the temperature normally gets higher than 100 °C. To resolve this problem, a novel liquid metal-based microheater with parallel ventilating side-channels is presented. It consists of a liquid-metal heating channel and two parallel ventilating side-channels. The heating channel is connected with the side-channels by small gaps between polydimethylsiloxane (PDMS) posts. Experimental results show that this novel microheater can be heated up to 200 °C without damage. To explain its excellent performance, an experiment is performed to discover the development of the voids within the liquid-metal heating channel, and two reasons are put forward in this work on the basis of the experiment. Afterward pressing and bending tests are conducted to explore the mechanical stability of the novel microheaters. Finally, the microheaters are applied to warm water to show their good flexibility on non-flat surfaces. In consequence, the novel liquid metal-based microheater is believed to be widely applicable to soft micro-electro-mechanical system(MEMS) heating devices.
format Online
Article
Text
id pubmed-7074615
institution National Center for Biotechnology Information
language English
publishDate 2020
publisher MDPI
record_format MEDLINE/PubMed
spelling pubmed-70746152020-03-20 A Performance-Enhanced Liquid Metal-Based Microheater with Parallel Ventilating Side-Channels Zhang, Lunjia Zhang, Pan Wang, Ronghang Zhang, Renchang Li, Zhenming Liu, Wei Wang, Qifu Gao, Meng Gui, Lin Micromachines (Basel) Article Gallium-based liquid metal can be used as a material for microheaters because it can be easily filled into microchannels and electrified to generate Joule heat, but the liquid metal-based microheater will suffer breakage induced by voids forming within the liquid metal when the temperature normally gets higher than 100 °C. To resolve this problem, a novel liquid metal-based microheater with parallel ventilating side-channels is presented. It consists of a liquid-metal heating channel and two parallel ventilating side-channels. The heating channel is connected with the side-channels by small gaps between polydimethylsiloxane (PDMS) posts. Experimental results show that this novel microheater can be heated up to 200 °C without damage. To explain its excellent performance, an experiment is performed to discover the development of the voids within the liquid-metal heating channel, and two reasons are put forward in this work on the basis of the experiment. Afterward pressing and bending tests are conducted to explore the mechanical stability of the novel microheaters. Finally, the microheaters are applied to warm water to show their good flexibility on non-flat surfaces. In consequence, the novel liquid metal-based microheater is believed to be widely applicable to soft micro-electro-mechanical system(MEMS) heating devices. MDPI 2020-01-24 /pmc/articles/PMC7074615/ /pubmed/31991611 http://dx.doi.org/10.3390/mi11020133 Text en © 2020 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Zhang, Lunjia
Zhang, Pan
Wang, Ronghang
Zhang, Renchang
Li, Zhenming
Liu, Wei
Wang, Qifu
Gao, Meng
Gui, Lin
A Performance-Enhanced Liquid Metal-Based Microheater with Parallel Ventilating Side-Channels
title A Performance-Enhanced Liquid Metal-Based Microheater with Parallel Ventilating Side-Channels
title_full A Performance-Enhanced Liquid Metal-Based Microheater with Parallel Ventilating Side-Channels
title_fullStr A Performance-Enhanced Liquid Metal-Based Microheater with Parallel Ventilating Side-Channels
title_full_unstemmed A Performance-Enhanced Liquid Metal-Based Microheater with Parallel Ventilating Side-Channels
title_short A Performance-Enhanced Liquid Metal-Based Microheater with Parallel Ventilating Side-Channels
title_sort performance-enhanced liquid metal-based microheater with parallel ventilating side-channels
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7074615/
https://www.ncbi.nlm.nih.gov/pubmed/31991611
http://dx.doi.org/10.3390/mi11020133
work_keys_str_mv AT zhanglunjia aperformanceenhancedliquidmetalbasedmicroheaterwithparallelventilatingsidechannels
AT zhangpan aperformanceenhancedliquidmetalbasedmicroheaterwithparallelventilatingsidechannels
AT wangronghang aperformanceenhancedliquidmetalbasedmicroheaterwithparallelventilatingsidechannels
AT zhangrenchang aperformanceenhancedliquidmetalbasedmicroheaterwithparallelventilatingsidechannels
AT lizhenming aperformanceenhancedliquidmetalbasedmicroheaterwithparallelventilatingsidechannels
AT liuwei aperformanceenhancedliquidmetalbasedmicroheaterwithparallelventilatingsidechannels
AT wangqifu aperformanceenhancedliquidmetalbasedmicroheaterwithparallelventilatingsidechannels
AT gaomeng aperformanceenhancedliquidmetalbasedmicroheaterwithparallelventilatingsidechannels
AT guilin aperformanceenhancedliquidmetalbasedmicroheaterwithparallelventilatingsidechannels
AT zhanglunjia performanceenhancedliquidmetalbasedmicroheaterwithparallelventilatingsidechannels
AT zhangpan performanceenhancedliquidmetalbasedmicroheaterwithparallelventilatingsidechannels
AT wangronghang performanceenhancedliquidmetalbasedmicroheaterwithparallelventilatingsidechannels
AT zhangrenchang performanceenhancedliquidmetalbasedmicroheaterwithparallelventilatingsidechannels
AT lizhenming performanceenhancedliquidmetalbasedmicroheaterwithparallelventilatingsidechannels
AT liuwei performanceenhancedliquidmetalbasedmicroheaterwithparallelventilatingsidechannels
AT wangqifu performanceenhancedliquidmetalbasedmicroheaterwithparallelventilatingsidechannels
AT gaomeng performanceenhancedliquidmetalbasedmicroheaterwithparallelventilatingsidechannels
AT guilin performanceenhancedliquidmetalbasedmicroheaterwithparallelventilatingsidechannels