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molecular configuration

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Series: ASM Handbook Archive
Volume: 10
Publisher: ASM International
Published: 01 January 1986
DOI: 10.31399/asm.hb.v10.a0001728
EISBN: 978-1-62708-178-8
... combination of electron configurations produces a spectroscopic term that describes the state of the atom. Atomic emission is analytically useful only to the extent that the emission from one atomic species can be measured and its intensity recorded independent of emission from other sources. Emission sources...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003525
EISBN: 978-1-62708-180-1
... analysis. The descriptions of the analytical techniques are supplemented by a series of case studies that include pertinent visual examination results and the corresponding images that aid in the characterization of the failures. The article describes the methods used for determining the molecular weight...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 November 1995
DOI: 10.31399/asm.hb.emde.a0003025
EISBN: 978-1-62708-200-6
...Abstract Abstract Mechanical properties are often the most important properties in the design and selection of engineering plastics. Temperature, molecular structure, crystallinity, viscoelasticity, and effects of environment, fillers and reinforcements are considered as the basic factors...
Series: ASM Handbook Archive
Volume: 10
Publisher: ASM International
Published: 01 January 1986
DOI: 10.31399/asm.hb.v10.a0001732
EISBN: 978-1-62708-178-8
...Abstract Abstract This article provides an introduction to the molecular fluorescence spectroscopy, and discusses the theory of fluorescence and its application to chemical analysis. It provides information on fluorescence that occurs in organic compounds and inorganic atoms and molecules...
Series: ASM Handbook
Volume: 23
Publisher: ASM International
Published: 01 June 2012
DOI: 10.31399/asm.hb.v23.a0005676
EISBN: 978-1-62708-198-6
... to classify polymers, including the polymerization method, how the material deforms, or molecular origin or stability. The article contains tables that list common medical polymers used in medical devices. It explains the medical polymer selection criteria and regulatory aspects of materials selection failure...
Series: ASM Handbook
Volume: 10
Publisher: ASM International
Published: 15 December 2019
DOI: 10.31399/asm.hb.v10.a0006653
EISBN: 978-1-62708-213-6
...). This is accomplished through a series of processes depicted in Fig. 1 : Sample solutions must have the solvent (typically water) removed by desolvation. The resulting solid material is vaporized. The molecular species are decomposed to yield the atomic vapor. Because of the high temperatures required...
Series: ASM Handbook
Volume: 22A
Publisher: ASM International
Published: 01 December 2009
DOI: 10.31399/asm.hb.v22a.a0005434
EISBN: 978-1-62708-196-2
...Abstract Abstract This article focuses on transport phenomena and modeling approaches that are specific to vapor-phase processes (VPP). It discusses the VPP for the synthesis of materials. The article reviews the basic notions of molecular collisions and gas flows, and presents transport...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 November 1995
DOI: 10.31399/asm.hb.emde.a0003006
EISBN: 978-1-62708-200-6
... helmets; and ultrahigh molecular weight polyethylene (UHMWPE), used to make ice hockey dasher boards and pen tips. Thermosets, on the other hand, once reacted and cured, cannot be re-formed by any means that will not break the covalent bonds and destroy the polymer. Examples of thermosets include...
Series: ASM Handbook
Volume: 10
Publisher: ASM International
Published: 15 December 2019
DOI: 10.31399/asm.hb.v10.a0006662
EISBN: 978-1-62708-213-6
.... This article discusses the sampling techniques and applications of IR spectra as well as the molecular structure information it can provide. The discussion begins with a description of the general principle of IR spectroscopy. This is followed by a section on commercial IR instruments. Sampling techniques...
Series: ASM Handbook
Volume: 13A
Publisher: ASM International
Published: 01 January 2003
DOI: 10.31399/asm.hb.v13a.a0003692
EISBN: 978-1-62708-182-5
..., as pipeline coatings, and as coating materials in the original equipment manufacturer (OEM) markets. Fine powders produced from high-molecular-weight resins of the thermoplastic vinyl and fluorinated hydrocarbon families, or from thermoset resins of the epoxy and polyester families, are applied to the surface...
Series: ASM Handbook
Volume: 10
Publisher: ASM International
Published: 15 December 2019
DOI: 10.31399/asm.hb.v10.a0006663
EISBN: 978-1-62708-213-6
... species (atomic or molecular) and measures the mass-to-charge ratio ( m / z ). Typical ionization and measurement occur in a vacuum, and, therefore, samples must comprise permanent gases or volatile species, where larger molecules must use alternative vaporization-ionization methods. Because each...
Series: ASM Handbook
Volume: 5B
Publisher: ASM International
Published: 30 September 2015
DOI: 10.31399/asm.hb.v05b.a0006009
EISBN: 978-1-62708-172-6
... with pigments, additives, and catalysts, followed by homogenizing in a kneader-extruder, then ground and screened to make powder coatings. Powder coatings typically are applied by electrostatic spray and then are heated to melt and cure the coating. The polyesters used are amorphous, with 2000 to 6000 molecular...
Series: ASM Handbook
Volume: 10
Publisher: ASM International
Published: 15 December 2019
DOI: 10.31399/asm.hb.v10.a0006676
EISBN: 978-1-62708-213-6
... experiments can be performed using one of several configurations (single and dual cantilever, three-point bending, shear, compression, and tension). The mode of the analysis determines which type of modulus is evaluated (see Fig. 3 ) ( Ref 1 ). The shear mode determines shear modulus and is ideal for soft...
Series: ASM Handbook
Volume: 21
Publisher: ASM International
Published: 01 January 2001
DOI: 10.31399/asm.hb.v21.a0003441
EISBN: 978-1-62708-195-5
... is known, it is possible to calculate the optimal amount of curing agent required for the resin. The viscosity of the resin is a convenient index for its handling and flow characteristics during cure. Other properties of more limited interest include softening point, melting point, molecular weight...
Series: ASM Handbook
Volume: 20
Publisher: ASM International
Published: 01 January 1997
DOI: 10.31399/asm.hb.v20.a0002464
EISBN: 978-1-62708-194-8
...Abstract Abstract This article discusses the most fundamental building-block level, atomic level, molecular considerations, intermolecular structures, and supermolecular issues. It contains a table that shows the structures and lists the properties of selected commodity and engineering plastics...
Series: ASM Handbook
Volume: 6
Publisher: ASM International
Published: 01 January 1993
DOI: 10.31399/asm.hb.v06.a0001479
EISBN: 978-1-62708-173-3
...-use requirements and joint configurations required for the formation of a good soldered joint. It focuses on the visual, automatic, and destructive inspection techniques for determining overall joint quality. automatic inspection destructive inspection quality control soldered joints visual...
Series: ASM Handbook Archive
Volume: 10
Publisher: ASM International
Published: 01 January 1986
DOI: 10.31399/asm.hb.v10.a0001735
EISBN: 978-1-62708-178-8
...Abstract Abstract Infrared (IR) spectroscopy is a useful technique for characterizing materials and providing information on the molecular structure, dynamics, and environment of a compound. This article provides the basic principles and instrumentation of IR spectroscopy. It discusses...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 November 1995
DOI: 10.31399/asm.hb.emde.a0003023
EISBN: 978-1-62708-200-6
... composition, chain configuration, conformation of the base polymers, processing of the base polymers with or without additives; and the response to chemical, physical, and mechanical stresses of base polymers as unfilled, shaped articles or as components of composite structures. It also describes thermal...
Series: ASM Handbook
Volume: 8
Publisher: ASM International
Published: 01 January 2000
DOI: 10.31399/asm.hb.v08.a0003255
EISBN: 978-1-62708-176-4
..., it is the type of bonding present that imparts each class of materials with distinct microstructural features and with unique mechanical and physical properties. Crystalline solids exhibit atomic or molecular structures that repeat over large atomic distances (i.e., they exhibit long-range-ordered, LRO...
Series: ASM Handbook
Volume: 4B
Publisher: ASM International
Published: 30 September 2014
DOI: 10.31399/asm.hb.v04b.a0005931
EISBN: 978-1-62708-166-5
... and data-acquisition (SCADA) system is used to monitor, collect, and store data from multiple pieces of equipment. burners configurable controllers flow measurement control systems fuel-fired furnaces heat treating furnaces mechanical motion component programmable logic controllers pumps...