Effects of Homogeneous Irradiation of Electron Beam with Low Potential on Microscopic Fracture Resistance of Borosilicate Glass Surface

Iwata, K.; Nishi, Yoshitake

doi:10.2320/matertrans.mra2008401

Cited by 3 publications

(4 citation statements)

References 19 publications

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“…Furthermore, since active terminated atoms with dangling bonds without crack generation have been formed by EBI for silica and silicate glasses, 13,14) both strengthening and ductility enhancement are drawn. [10][11][12] Using the radial distribution function of SO 2 glass, optimal dose of EBI has decreased its mean atomic distance 10) . The compressive strain generally occurs at surface of the ceramics with similar chemical bonds.…”

Section: Collision Fatigue Test Of Pzt Without Ebimentioning

confidence: 99%

“…The electron beam irradiation (EBI) with homogeneous low potential of 100 keV class has been suggested and developed to draw the marvelous properties of strengthening and ductility enhancement for silica and silicate glass without crack generation. [10][11][12] Active terminated atoms with dangling bonds 13,14) have been formed in silica 10) and silicate glasses 11) treated by EBI. On the other hand, additional dose of 0.43 MGy-EBI reduces the bending strength, its strain and its fracture energy, to approximately 1/2, 1/3 and 1/6 of that untreated because of radiation damages.…”

Section: Introductionmentioning

confidence: 99%

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Effect of 100 keV Class Electron Beam Irradiation on Impact Fatigue Behavior of PZT Ceramics

et al. 2018

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The homogeneous and quick treatment of 100 keV class electron beam irradiation (EBI) improved the resistance to impact fatigue indicated by the critical collision number (N c) of impact fracture of PZT (Pb(Nb 2/3 Ni 1/3)O 3-Pb(Zr 1/3 Ti 2/3)O 3) ceramics, although an additional dose decayed them. An optimal dose of 0.086 MGy-EBI apparently improved the N c and E C i of PZT. It could be explained by shortening the lattice constant after the collision for the PZT irradiated with the optimal dose.

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Section: Collision Fatigue Test Of Pzt Without Ebimentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Effect of 100 keV Class Electron Beam Irradiation on Impact Fatigue Behavior of PZT Ceramics

et al. 2018

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“…EB-irradiation has had a positive track record improving properties of wetting 10) , mist resistance [11][12][13][14], polymer adhesion [15][16][17][18][19][20][21][22][23][24], sterilization [25], conductivity [26] and strength [3,4,6,[27][28][29][30][31][32][33][34][35][36][37][38][39][40][41][42][43][44][45] of many materials including: CF [3,4], silicate glasses [27][28][29][30][31][32], polymers [6,[35][36]…”

Section: Introductionmentioning

confidence: 99%

Effects of Irradiation Dose of Sheet-Like Electron Beam and its Cathode Voltage on Impact Strength of Carbon Fiber Reinforced Thermoplastic Polyamide just before Shipping

Sagawa

Kimura

Ishiwata

et al. 2023

MSF

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Achieving a strong bond between carbon fiber (CF) and recyclable thermoplastic polymer (TP) has always been highly sought after. So far, applying electron beam (EB) irradiation with optimal dose and cathode potential (Vc) has shown success in increasing mechanical properties of interlayered CFRTPs. However, with concern for durability and safety, higher strength is desired. Therefore, EB setting applying electron beam (EB) irradiation with cathode potential (Vc) to 170, 210, 225 or 250 kV was applied to CFRTPA (carbon fiber reinforced thermoplastic polyamide) articles just before shipping. Specimens were 9 CF plies alternating between 10 PA (polyamide) sheets, designated [TPA]10[CF]9. When optimal EB dose of 43.2 kGy is applied to both finished specimen surfaces after fabrication, experimental results show higher Vc setting of 250 kV can increase impact strength of the [TPA]10[CF]9 over that at 170 kV. In summary, the 250 kV-EB (250 kV) strengthens [TPA]10[CF]9 significantly, about 25 to 27% larger than that of 170 kV and zero (untreated). Based on Christenhusz and Reimer equation to calculate penetration depth, Dth of EBI into polymers, increasing Vc to 250 kV increased Dth to more than 2 times that at 170 kV.

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“…12,13) In addition, our research unit recently starts to report that the high stress resistance to crack origin nucleation as well as to crack propagation dominates the high fracture resistance of borosilicate glass. 14) However, the influence of EB-irradiation on the Charpy impact value (a uc ), one of indicator of practical fracture resistance, has not been reported for borosilicate glass. The a uc value of a material is an important property in terms of practical applications.…”

Section: Introductionmentioning

confidence: 99%

Effects of Electron Beam Irradiation on Impact Value of Borosilicate Glass

Iwata

Nishi

2010

Mater. Trans.

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The effects of homogeneous irradiation of electron-beam (EB) with low voltage on the Charpy impact value (a uc ) of borosilicate glass were studied. When it performed in short bursts to maintain a low temperature, EB irradiation at a dosage from 0.04 to 0.22 MGy increased the a uc value and enhanced its reproducibly. Based on the electron spin resonance (ESR) spectra, EB-irradiation formed apparent dangling bonds constructed with sodium atoms with high density of outer-shell electrons and terminated oxygen atoms of silica network in the borosilicate glass. When the intermolecular repulsive force generated the partial relaxation against residual and deformed strain, as well as expansion in front of crack tips near the sodium atoms, the initial a uc enhancement of the borosilicate glass by the irradiation can be explained. Furthermore, the strong resistance to radiation damage of borosilicate glass was qualitatively confirmed. Although the large start point of irradiation dose to decrease the a s value was 0.08 MGy for silica glass, it was 0.22 MGy for borosilicate glass. Consequently, the boron addition enhanced the resistivity to irradiation damage.

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Effects of Homogeneous Irradiation of Electron Beam with Low Potential on Microscopic Fracture Resistance of Borosilicate Glass Surface

Cited by 3 publications

References 19 publications

Effect of 100 keV Class Electron Beam Irradiation on Impact Fatigue Behavior of PZT Ceramics

Effect of 100 keV Class Electron Beam Irradiation on Impact Fatigue Behavior of PZT Ceramics

Effects of Irradiation Dose of Sheet-Like Electron Beam and its Cathode Voltage on Impact Strength of Carbon Fiber Reinforced Thermoplastic Polyamide just before Shipping

Effects of Electron Beam Irradiation on Impact Value of Borosilicate Glass

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