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Medical Device Link . Evaluating Environmental Stress Cracking of Medical Plastics
-weight components of the plastic, dissolution if the chemical is a good solvent, or other changes such as variations in opacity or color. If the plastic is under stress, it may also experience environmental stress cracking, which can be defined as the crazing and cracking that may occur when a plastic
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Inconel
that are used in applications that require a material that does not easily succumb to caustic corrosion, corrosion caused by high purity water, and stress-corrosion cracking. While each variation of Inconel has unique traits that make it effective in different circumstances, the majority of the alloys
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Liquid-Crystal Polymers
. LCPs are exceptionally inert. They resist stress cracking in the presence of most chemicals at elevated temperatures, including aromatic or halogenated hydrocarbons, strong acids, bases, ketones, and other aggressive industrial substances. Hydrolytic stability in boiling water is excellent
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Designed To Beat The Heat
Today's high-performance plastics handle elevated temperatures, caustic chemicals, and mechanical stress. AGC Inc., Meriden, Conn., selected carbon-fiber-reinforced PES and glassfiber-reinforced PES composites for an aircraft engine shroud. Carbon-fiber reinforcement in a lubricated PEI composite
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Experimental Residual Stress Evaluation Of Hydraulic Expansion Transitions In Alloy 690 Steam Generator Tubing (.pdf)
. material.1 However, at least one potential. designs currently under fabrication for Advanced. secondary-side environment (caustic plus lead) has. Series Replacement Steam Generators. The material. been found to initiate cracking on the highly stressed. properties and geometric parameters are described
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Joints in an instant
, and petroleum environments. It also resists gases and most solvents, with the exception of strong acids and caustic solutions. APPLICATIONS. The IMA bonds most small components that can be joined by adhesives, soldering, welding, brazing, and mechanical processes such as staking, press fitting, and crimping
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Industrial Cleanup Hazards Demand a Closer Look
and their companies' profits, there are a number of industrial hazards to be overcome ranging from caustic, flammable, and explosive dangers to respiratory, ergonomic, and even noise concerns. While the dangers of handling materials such as fuel, alcohol, solvent, or ordinance may be obvious, less obvious
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Secrets of Bond Strength
of dissolved contaminants. But some solvents aren’t compatible with particular polymeric substrates. Some solvents dissolve thermoplastics or will create stress cracking or crazing on surfaces. Common solvents are acetone, MEK, MIBK, Xylene, TCE, ethanol, and IPA. Apply solvents with clean, lint-free cloths