Thermal properties as a research area focuses on the quantitative characterization, prediction, and control of how materials and systems store, conduct, and exchange heat. It encompasses investigation of thermal conductivity, specific heat capacity, thermal diffusivity, thermal expansion, and related transport coefficients across temperature, pressure, and phase regimes. Research typically integrates experimental calorimetry and thermal analysis, steady-state and transient heat-flow methods, and atomistic or continuum simulations to elucidate phonon, electron, and radiative contributions. This domain underpins advances in thermal management, energy conversion, high-temperature materials, cryogenics, and micro/nanoscale heat transfer, often coupling with mechanical, electrical, and structural behavior.