Fig. 3: In-situ XRD patterns and fabrication of MGP-T fibers by thermal drawing.

a In-situ XRD patterns graph of MGP fiber. b Curve of d-spacing vs. temperature according to in-situ XRD patterns. c Porosity of MGP fibers when being heated. d Mechanism schematic diagram to fabricate MGP-T fibers from MGP fibers with axial stress and perpendicular stress during thermal drawing. e Photograph of several meters long MGP-T fibers. All error bars show mean ± SD.