The grain boundary groove method has been successfully used to measure Gibbs-Thomson coefficient, Γ, solid-liquid interfacial energies, σ_SL, experimentally for transparent materials, binary eutectic, peritectic, monotectic systems, colloidal system, any alloy system, multi-component systems as well as pure materials. It has been shown that the grain boundary groove shapes could be obtained for any system provided that the prepared sample could be held at the evaluated temperature long enough with a very stable temperature gradient. Equilibrated grain boundary groove shapes for binary solid Mg₂Si intermetallic phase in equilibrium with liquid AlSiMg ternary eutectic solution have been directly observed with a radial heat flow apparatus. The Gibbs-Thomson coefficient, Γ, was determined with a numerical method using observed groove shapes. The measured thermal conductivities of the solid and liquid AlSiMg solutions at the eutectic temperature and the temperature gradient in the solid Mg₂Si phase were used for the calculation of Γ. Then σ_SL was determined using the Gibbs-Thomson equation. The grain boundary energy, σ_gb, for the same system was also obtained from the observed groove shapes. The results of the work were compared with the results of the related experimental works.

晶界槽方法已成功地用于测量吉布斯·汤姆逊系数，Γ，固-液界面能，σ _SL，实验用透明材料，二元共晶，包晶，偏晶系统，胶体系统中，任何合金系，多组分系统以及纯净材料。已经表明，只要制备的样品可以在评估的温度下保持足够长的时间并且具有非常稳定的温度梯度，就可以对任何系统获得晶界槽形状。二元固体Mg _2的平衡晶界槽形状用径向热流装置可以直接观察到与液态AlSiMg三元共晶溶液平衡的Si金属间相。Gibbs-Thomson系数Γ是使用观察到的沟槽形状通过数值方法确定的。在共晶温度下测得的固相和液相AlSiMg溶液的热导率和固相Mg ₂ Si相中的温度梯度用于计算Γ。然后σ _SL用的是吉布斯·汤姆逊式求出。还从观察到的沟槽形状获得了同一系统的晶界能_σgb。将工作结果与相关实验工作的结果进行了比较。