磁性形状记忆合金薄膜高频驱动的热能收集

2015 Transducers - 2015 18th International Conference on Solid-State Sensors, Actuators and Microsystems (TRANSDUCERS) Pub Date : 2015-06-21 DOI:10.1109/TRANSDUCERS.2015.7181024

M. Gueltig, M. Ohtsuka, H. Miki, T. Takagi, M. Kohl

{"title":"磁性形状记忆合金薄膜高频驱动的热能收集","authors":"M. Gueltig, M. Ohtsuka, H. Miki, T. Takagi, M. Kohl","doi":"10.1109/TRANSDUCERS.2015.7181024","DOIUrl":null,"url":null,"abstract":"A novel energy harvesting device using magnetic shape memory alloy (MSMA) film actuation is presented showing a power density of up to 3 mW/cm3 at a temperature change of the material of about 2 K. This exceeds the power output of previous MSMA harvesting devices by at least three orders of magnitude and challenges state-of-the-art thermoelectrics. The results are accomplished by using a tailored Ni-Co-Mn-Ga film with large temperature-dependent change of magnetization at the Curie temperature TC and a new cantilever design, with low thermal mass for rapid heat transfer in the order of 10 ms, matching the time constant of eigenoscillation.","PeriodicalId":6465,"journal":{"name":"2015 Transducers - 2015 18th International Conference on Solid-State Sensors, Actuators and Microsystems (TRANSDUCERS)","volume":null,"pages":null},"PeriodicalIF":0.0000,"publicationDate":"2015-06-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"4","resultStr":"{\"title\":\"Thermal energy harvesting by high frequency actuation of magnetic shape memory alloy films\",\"authors\":\"M. Gueltig, M. Ohtsuka, H. Miki, T. Takagi, M. Kohl\",\"doi\":\"10.1109/TRANSDUCERS.2015.7181024\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"A novel energy harvesting device using magnetic shape memory alloy (MSMA) film actuation is presented showing a power density of up to 3 mW/cm3 at a temperature change of the material of about 2 K. This exceeds the power output of previous MSMA harvesting devices by at least three orders of magnitude and challenges state-of-the-art thermoelectrics. The results are accomplished by using a tailored Ni-Co-Mn-Ga film with large temperature-dependent change of magnetization at the Curie temperature TC and a new cantilever design, with low thermal mass for rapid heat transfer in the order of 10 ms, matching the time constant of eigenoscillation.\",\"PeriodicalId\":6465,\"journal\":{\"name\":\"2015 Transducers - 2015 18th International Conference on Solid-State Sensors, Actuators and Microsystems (TRANSDUCERS)\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2015-06-21\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"4\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"2015 Transducers - 2015 18th International Conference on Solid-State Sensors, Actuators and Microsystems (TRANSDUCERS)\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1109/TRANSDUCERS.2015.7181024\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"2015 Transducers - 2015 18th International Conference on Solid-State Sensors, Actuators and Microsystems (TRANSDUCERS)","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/TRANSDUCERS.2015.7181024","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}

引用次数: 4

摘要

提出了一种利用磁形状记忆合金(MSMA)薄膜驱动的新型能量收集装置，在材料温度变化约2 K的情况下，其功率密度高达3 mW/cm3。这超过了以前的MSMA收集设备的输出功率至少三个数量级，并挑战了最先进的热电技术。在居里温度下，Ni-Co-Mn-Ga薄膜的磁化强度随温度变化很大，采用了一种新的悬臂梁设计，其热质量较低，可以在10 ms左右进行快速传热，与特征振荡的时间常数相匹配。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

查看原文本刊更多论文

Thermal energy harvesting by high frequency actuation of magnetic shape memory alloy films

A novel energy harvesting device using magnetic shape memory alloy (MSMA) film actuation is presented showing a power density of up to 3 mW/cm3 at a temperature change of the material of about 2 K. This exceeds the power output of previous MSMA harvesting devices by at least three orders of magnitude and challenges state-of-the-art thermoelectrics. The results are accomplished by using a tailored Ni-Co-Mn-Ga film with large temperature-dependent change of magnetization at the Curie temperature TC and a new cantilever design, with low thermal mass for rapid heat transfer in the order of 10 ms, matching the time constant of eigenoscillation.

求助全文

通过发布文献求助，成功后即可免费获取论文全文。去求助

来源期刊

2015 Transducers - 2015 18th International Conference on Solid-State Sensors, Actuators and Microsystems (TRANSDUCERS)

自引率

0.00%

发文量