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Keywords: polytetrafluoroethylene
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eBook Chapter
Series: ASTM Selected Technical Papers
Publisher: ASTM International
Published: 2012
ISBN: 978-0-8031-7536-5
... that the resulting uncertainties in the photon dose would be unacceptably large for silicon-device testing. However, it also suggested that nonhydrogenous materials such as polytetrafluoroethylene (PTFE) would exhibit smaller neutron response and might be useful in mixed environments. Preliminary research with PTFE...
eBook Chapter
Series: ASTM Selected Technical Papers
Publisher: ASTM International
Published: 2009
ISBN: 978-0-8031-7508-2
... temperature, and those that maintain good mechanical properties are essential. The scientists and engineers at the MCRF, in cooperation with seal suppliers, are currently testing a new formulation of polytetrafluoroethylene (PTFE) with brass filler. This brass-filled PTFE is showing great promise as a seal...
eBook Chapter
Series: ASTM Selected Technical Papers
Publisher: ASTM International
Published: 1993
ISBN-10: 0-8031-1855-4
ISBN: 978-0-8031-1855-3
.... polytetrafluoroethylene tape hydrocarbon contaminant mechanical impact test pneumatic impact test fourier transform infrared spectroscopy pyrolysis furnace ignition combustion autoignition temperature Shelley, R.M. I, Janoff, D. D. 2, and Pedley, M. D. 3 EFFECT OF HYDROCARBON OIL CONTAMINATION ON THE IGNITION...
eBook Chapter
Series: ASTM Selected Technical Papers
Publisher: ASTM International
Published: 1993
ISBN-10: 0-8031-1855-4
ISBN: 978-0-8031-1855-3
... Four polymers, which were high density polyethylene (HDPE), polytetrafluoroethylene (PTFE), unfilled polyimide (PI), and graphite-filled polyimide (GPI), were burned in high pressure oxygen over the range 0.7 to 69 MPa. Three metallic materials were used as support rods: aluminum 2216, stainless...
eBook Chapter
Series: ASTM Selected Technical Papers
Publisher: ASTM International
Published: 1988
ISBN-10: 0-8031-1177-0
ISBN: 978-0-8031-1177-6
... Small amounts of carbon fibers (about 5%) were determined in samples containing polyphenylene sulfide (PPS), inorganic filler (glass in this case), and polytetrafluoroethylene (PTFE) by means of thermal analysis using both thermogravimetry (TG), and differential scanning calorimetry (DSC). Two...
eBook Chapter
Series: ASTM Selected Technical Papers
Publisher: ASTM International
Published: 1983
ISBN-10: 0-8031-0251-8
ISBN: 978-0-8031-0251-4
... and burning rate at absolute pressures to 2 MPa (20 atm) have been made at 25°C for six materials: polytetrafluoroethylene, Viton®, neoprene, nylon, glass-filled nylon, and polymethylmethacrylate. The oxygen index was found to decrease with increasing pressure but to be independent of Reynolds number up...