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Acquisition of a Laser Flash Apparatus to simultaneously measure thermal diffusivity and heat capacity from 173 to 773 K

购买激光闪光装置，同时测量 173 至 773 K 的热扩散率和热容量

基本信息

批准号：
1912871
负责人：
Anne Hofmeister
金额：
$ 9.76万
依托单位：
Washington University
依托单位国家：
美国
项目类别：
Standard Grant
财政年份：
2019
资助国家：
美国
起止时间：
2019-07-01 至 2020-06-30
项目状态：
已结题

来源：
https://www.nsf.gov/awardsearch/showAward?AWD_ID=1912871&HistoricalAwards=false
关键词：
Acquisition Laser Flash Apparatus simultaneously

项目摘要

The flow of heat affects everyday activities such as cooking food, and is important to engineering problems such as manufacturing small cell phones that do not overheat. This award will provide funding for a new laser flash apparatus for determining heat flow. This new instrument will add to the infrastructure needed to advance fundamental issues in Earth and other physical sciences. It will have many practical applications to problems involving heat transfer.This award funds the acquisition of laser flash apparatus, which will improve the database on heat transport, further understanding of dynamic processes over a wide temperature range, and advance thermal models used to address diverse problems in Earth and planetary science. Problems possible to address include cooling of dust grains in meteorites, crystallization and evolution of plutons, dissipation of friction during plate motions, melting of the core, and deducing the thermal structure and evolution of rocky and ice planetary bodies. These new data will permit addressing the thermal structure and evolution of Solar System objects and exoplanets. Accurate heat flow data also bear on engineering problems, since ceramics and glasses are closely related, and sometimes identical, to the materials being examined.This award reflects NSF's statutory mission and has been deemed worthy of support through evaluation using the Foundation's intellectual merit and broader impacts review criteria.

热量的流动会影响烹饪食物等日常活动，并且对制造不会过热的小型手机等工程问题很重要。该奖项将为一种新的激光闪光装置提供资金，用于确定热流。这一新仪器将增加推进地球和其他物理科学基本问题所需的基础设施。该奖项将资助购买激光闪光装置，该装置将改善热传输数据库，进一步了解宽温度范围内的动态过程，并改进用于解决地球和行星科学中各种问题的热模型。可能解决的问题包括陨石中尘埃颗粒的冷却，深成岩的结晶和演化，板块运动期间摩擦的消散，核心的熔化，以及推断岩石和冰行星体的热结构和演化。这些新数据将允许解决太阳系天体和系外行星的热结构和演变。精确的热流数据也与工程问题有关，因为陶瓷和玻璃与被测材料密切相关，有时甚至完全相同。该奖项反映了NSF的法定使命，并通过使用基金会的知识价值和更广泛的影响审查标准进行评估，被认为值得支持。