| Fatigue Behaviour of Carbon Fibre-Reinforced Aluminium Laminates |
MAR 91 |
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| Authors:
C. T. Lin; P. W. Kao; F. S. Yang
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 | A new hybrid composite (CARALL), consisting of thin layers of carbon fibre/epoxy prepreg sandwiched between aluminium sheets, has been developed. It is shown that this class of materials offers higher modulus, higher tensile strength and lower density than 2024-T3 alloy in the longitudinal direction. Under tension-tension fatigue loading, the hybrid laminates showed superior fatigue crack propagation resistance in the longitudinal direction, which may be attributed to the bridging effect imposed ... |
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| Fatigue Behaviour of Carbon Fibre-Reinforced Aluminium Laminates |
91 |
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| Authors:
C. T. Lin; P. W. Kao; F. S. Yang; NATIONAL SUN YAT-SEN UNIV KOOHSLUNG (TAIWAN) INST OF MATERIALS SCIENCE AND E NGINEERING*
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| A newly developed hybrid composite (carall), which consists of thin layers of carbon fiber/epoxy prepeg sandwiched between aluminum sheets is shown to offer higher modulus, higher tensile strength and lower density than 2024-t3 alloy in the longitudinal direction. the hybrid laminates showed superior fatigue crack propagation resistance in the longitudinal direction under tension-tension fatigue loading possibly due to the bridging effect imposed by the intact fibers in the crack wake. ... |
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| Emission Spectroscopic Evidence of Bronsted Acid Sites in a Calcinated Vycor Glass |
18 MAY 87 |
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| Authors:
C. T. Lin; W. L. Hsu; C. L. Yang; M. A. El-Sayed; CALIFORNIA UNIV LOS ANGELES DEPT OF CHEMISTRY AND BIOCHEMISTRY
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| The emission and excitation spectra of quinoline and 2,3- dichloroquinozaline embedded in a calcinated (600 C) porous Vycor glass and dissolved in fluid solutions were recorded at various temperatures. The spectral characteristics and phosphorescence lifetimes of adsorbates were observed to be identical to those in 0.5 N sulphonic acid solutions, indicating that H+ transferred from the surface to the N-heterocyclics. The strong surface- adsorbate interaction is further revealed by the ... |
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| The Determination of the Structure of Low Temperature Triplet Energy Traps Using PMDR Methods. I. The Magnetic Axes of Hexachlorobenzene Excimers. |
MAR 1974 |
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| Authors:
M. A. El-Sayed; C. T. Lin; R. Leyerle; CALIFORNIA UNIV LOS ANGELES DEPT OF CHEMISTRY
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| Using linearly polarized microwave radiation, the optically detected microwave signal of the zerofield transitions of the hexachlorobenzene broad excimer type emission is studied as a function of the angle between the microwave H vector field and the crystal axes. The dependence of the PMDR signal on the angle between the H vector field of the linearly polarized microwave and crystal axes is examined. From these studies, the exact orientation of ... |
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| Determination of Intermolecular Energy Transfer Routes by PMDR Spectroscopy. |
15 AUG 1972 |
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| Authors:
A. K. Wilkerson; C. T. Lin; M. A. El-Sayed; CALIFORNIA UNIV LOS ANGELES DEPT OF CHEMISTRY
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| The determination of the mechanism for the intermolecular energy transfer from an excited singlet state of a host (donor) to a guest (acceptor) molecule in a mixed crystal by Phosphorescence Microwave Double Resonance (PMDR) methods has been demonstrated by monitoring the relative populations of the triplet sublevels of the acceptor. (Author) |
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| Triplet State Geometry of Hexachlorobenzene in Different Hosts at 1.6K. |
25 JUL 1972 |
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| Authors:
M. A. El-Sayed; A. A. Gwaiz; C. T. Lin; CALIFORNIA UNIV LOS ANGELES DEPT OF CHEMISTRY
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| The zerofield parameters of the triplet state of hexachlorobenzene (HCB) in HCB x-traps and in hexamethylbenzene (HMB) are determined using PMDR methods. In HCB, D and E are found to be 4.66 and 0.89 GHz, respectively. The corresponding values in HMB are found to be 4.621 and 0.045 GHz. These results as well as the difference in the relative band intensities in the phosphorescence spectrum in the two hosts strongly ... |
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