Sai JIN, Xiaogen LIU, Shuang QI, Runchang ZHAO, Zhijun LI. Fused Silica Glass: Laser-induced Damage on Bending Strength Weakening and Safety Design [J]. Journal of Inorganic Materials, 2023, 38(6): 671
- Journal of Inorganic Materials
- Vol. 38, Issue 6, 671 (2023)
1. Photo of optical elements with damage points in the fused silica glass vacuum window
2. Diagram and physical picture of the sample
3. Diagram of the damage point in a sample
4. Measurement of morphology and size of damage point (a) Maximum size (2a ); (b) Maximum depth (c )
5. Damage length (2a ) and depth (c ) of the damage points in various samples
6. Test results of average bending strength of the samples with and without damage point
7. Relationship between damage point length and bending strength of the samples
8. Fitting curve between damage point length and bending strength of the samples
9. Relationship between damage point depth and bending strength of the samples
10. Relationship between 2a /c values of the damage point and bending strength of the samples
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Table 1. Inversion values of bending strength of fused silica glass corresponding to different damage point sizes
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Table 2. K2 and K values of the fused silica glass under various load action time
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