基于激光点热源非稳态传热模型测固体材料热物性参数

陈清华, 高伟, 苏国用, 关维娟, 秦汝祥, 季家东, 马杨斌

Test of Thermo-Physical Property Parameters of Solid Material Based on Laser Point Heat Source Unsteady-State Heat Transfer Model

CHEN Qinghua, GAO Wei, SU Guoyong, GUAN Weijuan, QIN Ruxiang, JI Jiadong, MA Yangbin

表1 硼硅玻璃(Pyrex7740)热物性参数计算结果

Tab.1 Calculation results of thermo-physical parameters of borosilicate glass (Pyrex7740)

τ/s	θ(τ)/ ℃	α×10⁷/ (m²·s^-1)	λ/ (W·m^-1·K^-1)	Δλ_d/ %	c/(J· kg^-1·K^-1)
30	1.5	6.51	1.132	—	772.83
32	1.6	6.21	1.097	1.57	785.11
34	1.7	5.96	1.071	1.20	798.66
36	2.0	6.23	1.089	0.83	776.89
38	2.2	6.37	1.123	1.54	783.53
40	2.5	6.76	1.169	2.01	768.57
42	2.6	6.64	1.175	0.26	786.48
44	2.7	6.39	1.144	1.34	795.69
46	2.8	5.97	1.067	3.48	794.34
48	2.9	5.90	1.076	0.42	810.55
50	3.0	5.66	1.039	1.75	815.86
52	3.2	5.78	1.058	0.91	813.53
54	3.3	5.71	1.061	0.14	825.84
56	3.6	5.95	1.072	0.52	800.75
58	3.8	6.26	1.125	2.41	798.72