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Journal Article

Carbon Fiber/Epoxy Mold with Embedded Carbon Fiber Resistor Heater - Case Study

2018-04-07
Abstract The paper presents a complete description of the design and manufacturing of a Carbon Fiber/epoxy mold with an embedded Carbon Fiber resistor heater, and the mold performances in terms of its surface temperature distribution and thermal deformations resulting from the heating. The mold was designed for manufacturing aileron skins from Vacuum Bag Only prepreg cured at 135°C. The glass transition temperature of the used resin-hardener system was about 175°C. To ensure homogenous temperature of the mold working surface in the course of curing, the Carbon Fiber heater was embedded in a layer of a highly heat-conductive cristobalite/epoxy composite, forming the core of the mold shell. Because the cristobalite/epoxy composite displayed much higher thermal expansion than CF/epoxy did, thermal stresses could arise due to this discrepancy in the course of heating.
Standard

ADHESIVE, ELECTRICALLY CONDUCTIVE Silver - Organic Resin

1977-01-01
HISTORICAL
AMS3681A
This specification covers an electrically-conductive adhesive supplied as two components; a paste of silver-filled, epoxy-base adhesive and a separate curing agent which may be paste or liquid.
Standard

ADHESIVE, ELECTRICALLY CONDUCTIVE Silver - Organic Resin

2011-08-12
HISTORICAL
AMS3681B
This specification covers an electrically-conductive adhesive supplied as two components; a paste of silver-filled, epoxy-base adhesive and a separate curing agent which may be paste or liquid.
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