1：Experimental Design and Method Selection:

The study used infrared thermography to determine the thermal properties of basalt fiber reinforced composites. Two methods were employed: pulse thermography for in-depth thermal diffusivity and space resolved method for in-plane thermal diffusivity.

2：Sample Selection and Data Sources:

Basalt fiber reinforced composites were fabricated using vacuum bagging technique. The samples were prepared with plain bi-directional woven basalt fiber and epoxy resin.

3：List of Experimental Equipment and Materials:

Xenon flash lamp (Hensel), short-range infrared camera (FLIR SC 7500), Halogen lamp (1000 W), Light flash apparatus (NETZSCH LFA 467 HT Hyper Flash), Differential Scanning Calorimeter (NETZSCH DSC 200F3), BX53m OLYMPUS optical microscope.

4：Experimental Procedures and Operational Workflow:

The in-depth thermal diffusivity was determined by heating the specimen with a flash lamp and recording thermal images at the rear side. The in-plane thermal diffusivity was determined by heating the sample with a halogen lamp and recording thermal images in both reflection and transmission modes.

5：Data Analysis Methods:

The thermal diffusivity was determined by graphical fitting of experimental data with theoretical models. The uncertainty in measurements was determined using Type A analysis.