MRI: Acquisition of a Calorimetry STA/TMA System for Coe College

MRI：为 Coe 学院采购量热 STA/TMA 系统

• 批准号: 2216207
• 负责人: Mario Affatigato
• 金额: $ 26.2万
• 依托单位: Coe College
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2022
• 资助国家: 美国
• 起止时间: 2022-09-01 至 2023-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=2216207&HistoricalAwards=false
• 关键词: MRI; Acquisition; Calorimetry; STA; TMA

Non-Technical SummaryThis Major Research Instrumentation (MRI) award, jointly funded by the Division of Materials Research and the Established Program to Stimulate Competitive Research (EPSCoR), will acquire a new thermal characterization system which will allow the Physics Department at Coe College to measure various properties that depend on temperature up to very high values. The scientists will be able to look at the behavior of samples as the temperature is increased up to 2000 degrees Celsius. More specifically, they will conduct experiments on glasses that are extremely difficult to make. They will also measure thermal properties like melting points, crystallization temperatures, and the glass transition temperature (where the glass begins to soften). The system will also allow for the measurement of mechanical properties. These determine how easily a glass stretches as the temperature increases (thermal expansion coefficient), as well as volume and density changes. More advanced experiments that determine properties like the sintering temperature (where glass grains coalesce into a solid) will also be possible. These measurements are critical to understanding state-of-the-art new glasses and ceramic materials of future importance to the US economy. The work will also allow for the training of many undergraduate students. On top of carrying out the research described above, they will also be exposed to the instruments in certain advanced classes. International collaborators will also have access to the equipment during their visits to Coe.Technical SummaryThe new thermal characterization system at Coe College will be composed of a Simultaneous Thermal Analyzer (which runs differential scanning calorimetry (DSC), differential thermal analysis (DTA), and Thermogravimetric analysis (TGA)) and a ThermoMechanical Analyzer (TMA). This suite of tools will enable various Coe research groups to expand their measurement capabilities into the high-temperature range, with DSC/DTA measurements up to 2000 °C and 1600 °C for the mechanical (TMA) experiments. Projects will span from measurements on aerolevitated samples to comparisons between the results on invert glasses and topological constrain theory (TCT) models. The thermal properties of ionically conducting glasses will also be studied. The STA+TMA system will add substantive new capabilities to the materials research groups at Coe College; allow for the training of over 70 undergraduate students, and continue the growth of Coe College as a regional materials characterization hub. In turn, the characterization work on the system will impact other local academic institutions and companies, domestic and international collaborators; REU students; and high school teachers participating in Coe’s RET program.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.

非技术摘要这项重大研究仪器 (MRI) 奖项由材料研究部和刺激竞争研究既定计划 (EPSCoR) 联合资助，将获得一个新的热表征系统，该系统将使科学院物理系能够测量科学家们将能够观察温度升至 2000 摄氏度时样品的各种特性。更具体地说，他们将在玻璃上进行实验。它们还可以测量熔点、结晶温度和玻璃化转变温度（玻璃开始软化的温度）等热特性，这些特性决定了玻璃的机械特性。玻璃随着温度升高而拉伸（热膨胀系数），以及确定烧结温度（玻璃颗粒凝聚成固体）等特性的更先进的实验也将成为可能。这些测量对于理解至关重要。最先进的新这项工作还将对许多本科生进行上述研究的培训，他们还将在某些高级课程中接触到这些仪器。技术摘要 Coe 学院的新热表征系统将由同步热分析仪（运行差示扫描量热法 (DSC)、差热分析 (DTA) 和热重分析 (TGA)）和热机械分析仪 (TMA) 这套工具将使各个 Coe 研究小组能够将其测量能力扩展到高温范围，DSC/DTA 测量温度高达 2000 °C 和 1600 °C。机械（TMA）实验的项目涵盖从气动样品的测量到倒置玻璃和拓扑约束理论（TCT）模型的结果之间的比较。 STA+TMA 系统还将研究离子传导玻璃的热性能，将为 Coe 学院的材料研究小组增添实质性的新能力；能够培训 70 多名本科生，并继续推动 Coe 学院的发展。反过来，该系统的表征工作将影响其他当地学术机构和公司、国内外合作者、以及参与 Coe RET 项目的高中教师。使命，并通过使用基金会的智力价值和更广泛的影响审查标准进行评估，被认为值得支持。