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...
Autores principales: | , , , , , , , , |
---|---|
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 |