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- W747247141 abstract "The piezoelectric ultrasonic composite oscillator technique (PUCOT) is being applied to measure the elastic constants of the aluminides in the temperature ranges 300 to 1700 K (CoAl and NiAl) and 300 to 1500 K (FeAl). The PUCOT consists of piezoelectric quartz drive and gauge crystals to excite longitudinal or torsional ultrasonic (80 kHz) resonant stress waves in the specimen and alumina spacer rod of appropriate resonant lengths. The resonant system is driven by a closed loop oscillator which maintains a constant gauge voltage and hence constant strain amplitude in the specimen. While the specimen is heated at 20 K/h the resonant period is measured continuously. The elastic moduli are calculated from these values of the resonant period and accurate determinations of specimen length. The technique is described and some results given." @default.
- W747247141 created "2016-06-24" @default.
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- W747247141 date "1982-10-01" @default.
- W747247141 modified "2023-09-27" @default.
- W747247141 title "The use of the PUCOT for elastic modulus measurements on intermetallics at high temperatures" @default.
- W747247141 hasPublicationYear "1982" @default.
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