Temperature-leveling performance comparison of solid–solid phase change materials for thermal management of electronic chips in thin devices

材料科学 热导率 潜热 相变材料 热的 机械工程 核工程 复合材料 热力学 物理 工程类
作者
Masaaki Baba,Hiroaki Ishiharajima,Keigo Ishisaka,Noboru Yamada,M. Takeda
出处
期刊:Journal of Thermal Science and Technology [Japan Society Mechanical Engineers]
卷期号:19 (1): 24-00014
标识
DOI:10.1299/jtst.24-00014
摘要

Thermal management using solid–solid phase change materials (PCMs) is gaining attention as a viable technology for improving the reliability of smart devices, such as smartphones and tablets. This technology relies on the latent heat of PCMs to level temperature fluctuations in electronic chips, does not require additional power, and can be miniaturized. The temperature-leveling performance of thermal management devices based on solid–solid PCMs depends on the thermophysical properties and thickness of the PCM and the generated heat density of the heat source. However, these factors complicate the comparison of PCM performances. Therefore, clarifying the relationship between these factors and temperature-leveling performance of solid–solid PCMs and defining a performance factor are necessary for material development. In this study, we defined an evaluation index of PCMs suitable for thin smart devices. The temperature-leveling performances of VO2 and NiTi alloys, which are typical inorganic solid–solid PCMs, were compared to define the performance factor. Thermal simulations were performed to define and calculate the optimum PCM thickness that maximized the temperature-leveling performance and cost-effectiveness under various heat densities generated by a heat source. We defined the maximum effective energy capacity (Eeff) as the temperature-leveling performance factor, calculated using the optimal thickness and volumetric latent heat. PCMs with high Eeff are promising for thin smart devices. The simulation results indicated that Eeff of NiTi was 1.46–1.50 times higher than that of VO2 owing to the high thermal conductivity of NiTi. The simulation and experimental results were compared to validate the proposed thermal simulation model.

科研通智能强力驱动
Strongly Powered by AbleSci AI
更新
PDF的下载单位、IP信息已删除 (2025-6-4)

科研通是完全免费的文献互助平台,具备全网最快的应助速度,最高的求助完成率。 对每一个文献求助,科研通都将尽心尽力,给求助人一个满意的交代。
实时播报
woshiwuziq完成签到 ,获得积分10
刚刚
anna1992发布了新的文献求助10
1秒前
YY完成签到,获得积分10
1秒前
符宇新发布了新的文献求助10
1秒前
iNk应助kk采纳,获得10
2秒前
小马甲应助有机分子笼采纳,获得10
2秒前
2秒前
2秒前
张文静发布了新的文献求助30
2秒前
沉默的小天鹅应助xiaose采纳,获得10
3秒前
章宇完成签到,获得积分10
3秒前
充电宝应助123采纳,获得10
4秒前
想喝冰美完成签到,获得积分10
4秒前
bkagyin应助小海采纳,获得10
4秒前
帅气凝云完成签到,获得积分10
4秒前
LUKW给嘟嘟喂嘟嘟的求助进行了留言
4秒前
4秒前
清新的寄风完成签到 ,获得积分10
5秒前
难过的一一完成签到,获得积分10
5秒前
Jasper应助Ancient采纳,获得10
5秒前
孙刚发布了新的文献求助10
5秒前
英勇皮卡丘完成签到,获得积分10
6秒前
Deny发布了新的文献求助10
6秒前
6秒前
6秒前
6秒前
xinanan完成签到,获得积分10
6秒前
荔枝多酚完成签到,获得积分10
7秒前
Coraline发布了新的文献求助10
7秒前
坦率的匪举报金闪闪求助涉嫌违规
7秒前
GGGGGG果果发布了新的文献求助10
7秒前
7秒前
8秒前
8秒前
64658应助Ruby采纳,获得10
8秒前
kiki完成签到 ,获得积分10
9秒前
小二郎应助fafamimireredo采纳,获得10
9秒前
10秒前
小胖熊完成签到,获得积分10
10秒前
10秒前
高分求助中
A new approach to the extrapolation of accelerated life test data 1000
Handbook of Marine Craft Hydrodynamics and Motion Control, 2nd Edition 500
‘Unruly’ Children: Historical Fieldnotes and Learning Morality in a Taiwan Village (New Departures in Anthropology) 400
Indomethacinのヒトにおける経皮吸収 400
Phylogenetic study of the order Polydesmida (Myriapoda: Diplopoda) 370
基于可调谐半导体激光吸收光谱技术泄漏气体检测系统的研究 350
Robot-supported joining of reinforcement textiles with one-sided sewing heads 320
热门求助领域 (近24小时)
化学 材料科学 医学 生物 工程类 有机化学 生物化学 物理 内科学 纳米技术 计算机科学 化学工程 复合材料 遗传学 基因 物理化学 催化作用 冶金 细胞生物学 免疫学
热门帖子
关注 科研通微信公众号,转发送积分 3987078
求助须知:如何正确求助?哪些是违规求助? 3529488
关于积分的说明 11245360
捐赠科研通 3267987
什么是DOI,文献DOI怎么找? 1804013
邀请新用户注册赠送积分活动 881270
科研通“疑难数据库(出版商)”最低求助积分说明 808650