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coefficient of moisture expansion

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Series: ASM Technical Books
Publisher: ASM International
Published: 01 April 2004
DOI: 10.31399/asm.tb.ps.t62440145
EISBN: 978-1-62708-352-2
... of curvature A 1 and A 2 are the thicknesses of materials 1 and 2 X 1 and X 2 are the coefficients of thermal expansion of materials 1 and 2 E 1 and E 2 are the moduli of elasticity of materials 1 and 2 T f is the freezing point (solidus temperature) of the filler alloy...
Book Chapter

By A. F. Clark
Series: ASM Technical Books
Publisher: ASM International
Published: 01 June 1983
DOI: 10.31399/asm.tb.mlt.t62860075
EISBN: 978-1-62708-348-5
.... Figure 3.3 Potential energy between two atoms vs. the interatomic distance. In general, the length of a specimen is a smooth function of temperature, L ( T ), with the normalized derivative defined as the coefficient of linear thermal expansion , α , or (3.1) α ( T ) = 1 L d L...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2003
DOI: 10.31399/asm.tb.cfap.t69780115
EISBN: 978-1-62708-281-5
... at 1.82 MPa (0.264 ksi) UL index Thermal conductivity Coefficient of thermal expansion, 10 −6 /°C °C °F °C °F W/m · K Btu/ft · h · °F Acrylonitrile-butadiene-styrene (ABS) 99 210 60 140 0.27 0.16 53 ABS-polycarbonate alloy (ABS-PC) 115 240 60 140 0.25 0.14 35 Diallyl...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2010
DOI: 10.31399/asm.tb.scm.t52870401
EISBN: 978-1-62708-314-0
... environment. Fig. 15.11 Environmental exposure of carbon/epoxy in Malaysia. Source: Ref 5 Moisture absorption causes the matrix to swell and exert through-the-thickness strain. The coefficient of moisture expansion defines the way a volume changes during moisture absorption. The volume...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2010
DOI: 10.31399/asm.tb.scm.t52870101
EISBN: 978-1-62708-314-0
..., and heating and cooling rates. The chapter also includes best practices and recommendations for toolmaking and assembly. autoclave curing bond tool coefficient of thermal expansion composite fabrication TOOLING FOR COMPOSITE FABRICATION is a major up-front nonrecurring cost. It is not unusual...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 September 2005
DOI: 10.31399/asm.tb.gmpm.t51250077
EISBN: 978-1-62708-345-4
... to their greater coefficient of thermal expansion and moisture absorption Initial high mold costs in developing correct tooth form and dimensions Can be negatively affected by certain chemicals and even some lubricants Improper molding tools and process can produce residual internal stresses at the tooth...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2010
DOI: 10.31399/asm.tb.scm.t52870201
EISBN: 978-1-62708-314-0
..., the plume dissipates and the flow becomes slower and more uniform. This velocity drop over the tools in the middle of the autoclave causes their convection coefficient to be lower than for parts located near the door. the velocity was noticeably higher at the top of the autoclave than at the sides...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2005
DOI: 10.31399/asm.tb.pb.t51230143
EISBN: 978-1-62708-351-5
..., there is usually a mismatch between the coefficients of thermal expansion (CTEs) of the abutting components. This manifests itself as stress on cooling from the solidus temperature of the filler metal and is normally a maximum at the lowest temperature that the assembly experiences. For aerospace and some...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2003
DOI: 10.31399/asm.tb.cfap.t69780089
EISBN: 978-1-62708-281-5
... 136 ) of these materials. Thermomechanical analysis is one of the standard test techniques for studying thermoset resins because T g and the coefficient of thermal expansion are strongly influenced by resin composition, additives, solvents, moisture, and degree of cure. Dynamic Mechanical...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2010
DOI: 10.31399/asm.tb.scm.t52870489
EISBN: 978-1-62708-314-0
... density and a low coefficient of thermal expansion (CTE), and it is conductive. It is structurally very efficient and exhibits excellent fatigue resistance. It is also brittle (strain-to-failure less than two percent) and exhibits low impact resistance. Being conductive, it causes galvanic corrosion...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2003
DOI: 10.31399/asm.tb.cfap.t69780177
EISBN: 978-1-62708-281-5
... 280 …  At 0.46 MPa (0.066 ksi) 214 230 270 212 Coefficient of linear thermal expansion, 10 −5 /K 3.6 3.5 3.8 3.6 D 696 Recommended maximum continuous service temperature for normal parts, °C (°F) 80 (175) 80 (175) 115 (240) 80 (175) … Water absorption, immersed 24 h at 23 °C...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2010
DOI: 10.31399/asm.tb.scm.t52870449
EISBN: 978-1-62708-314-0
... of the bearing load. 14. The preferred fastener material for use with carbon composites is titanium. Best coefficient of thermal expansion match and minimum corrosion problem. 15. Do not use interference fit-type fasteners that require driving the fasteners into the hole. May cause hold damage, which...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 July 2009
DOI: 10.31399/asm.tb.bcp.t52230441
EISBN: 978-1-62708-298-3
.... Source: Sharpe 1990 Fig. 24.3 Examples of possible shear-lap configurations. Source: Snogren 1970 Differences in the temperature coefficient of thermal expansion (CTE) of the two metals being joined, the service temperature of the part, the cure temperature of the adhesive...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2010
DOI: 10.31399/asm.tb.scm.t52870517
EISBN: 978-1-62708-314-0
... cleaning for field repairs. While not generally as reliable as the production tank procedures, they are far superior to simple hand sanding or abrading. A carbon/epoxy repair patch must never be hot-bonded to an aluminum assembly. The coefficients of thermal expansion are so different that the bonded...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2003
DOI: 10.31399/asm.tb.cfap.t69780343
EISBN: 978-1-62708-281-5
... transitions, damping, softening cross linking Thermal-mechanical analysis (TMA) Penetration temperature, expansion coefficient Phase changes, T g , T m , dimensional stability, modulus, compliance, deflection temperature under load, Vicat temperature Mechanical spectroscopy Viscosity, normal...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 January 2022
DOI: 10.31399/asm.tb.isceg.t59320323
EISBN: 978-1-62708-332-4
... The quality of sand is very important because it influences the packing density, bond consumed, permeability, and expansion defects. The other additives, such as bentonite clay, sea-coal, and dextrin, are procured per the specifications and stored to be free from moisture contamination. Silica sand...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2010
DOI: 10.31399/asm.tb.scm.t52870235
EISBN: 978-1-62708-314-0
... thickness. While it is permissible to bond composite adherends to aluminum honeycomb core, composite adherends should never be bonded to solid aluminum adherends. The coefficients of thermal expansion are so different that if the bond does not fail on cool-down from the cure temperature, it will contain...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 October 2012
DOI: 10.31399/asm.tb.lmub.t53550385
EISBN: 978-1-62708-307-2
..., aramid fibers are like most other materials in that they expand with increasing temperature. However, in the longitudinal direction, the fibers actually contract somewhat as temperature increases. The negative coefficient of thermal expansion (CTE) of aramid fibers can be used to advantage to design...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 October 2012
DOI: 10.31399/asm.tb.lmub.t53550325
EISBN: 978-1-62708-307-2
... of the fibers. Fillers are used in engineering plastics for a variety of reasons. They generally reduce the cost of the material as well as the mold shrinkage. They improve the thermal conductivity and reduce the coefficient of thermal expansion. Their effect on mechanical properties depends on the amount...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2011
DOI: 10.31399/asm.tb.jub.t53290243
EISBN: 978-1-62708-306-5
... difference between carbon composite and aluminum, adhesively bonded joints between these two materials have been known to fail during cool down from elevated temperature cures as a result of the thermal stresses induced by their differential expansion coefficients. Proper joint design should be used...