Materials

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Published: 11/23/2015

MATERIALS: The Problems with Single-Point Data, Part 7
The industry can choose between continuing to perform DTUL tests that provide single points that are part of a curve never seen, or perform the test that provides the entire curve.

Published: 10/26/2015

MATERIALS: The Problems with Single-Point Data--Part 6
Data sheets can be limited in the information they provide on how the material performs at elevated temperatures.

Published: 9/25/2015

MATERIALS: Impact Testing: The Problems With Single-Point Data
Knowledge of test conditions and graphical data showing the course of the impact event can help provide engineers and designers with the information they need to make informed choices about material toughness.

Published: 8/17/2015

MATERIALS: The Problems with Single-Point Data
In plastics, notched Izod and Charpy test results have been complicated by the way they are reported.

Published: 7/16/2015

MATERIALS: The Problems With Single-Point Data
Polymer properties are not constant as a function of temperature, and even small temperature changes can affect properties.

Published: 7/1/2015

RECYCLING: Compatibilizers Create New Recycle Feedstream Value
Generally confined to prime material applications, these additives are helping recyclers improve yields of mixed-material bales.

Published: 7/1/2015

MATERIALS: The Problems with Single-Point Data
Engineers who are used to working with metals are surprised that plastics cannot operate as close to their yield points as can metals. The yield point is not enough to tell you how the material reacts to stress.

Published: 5/25/2015

MATERIALS: The Problems with Single-Point Data
Properties are generally provided at a single temperature on a data sheet. But do those properties stay the same with changing temperatures? Of course not.

Published: 4/27/2015

MATERIALS: The Trouble with Data Sheets
Data sheets are routinely relied upon, yet the data they provide is limited in scope and can lead to incorrect conclusions.

Published: 3/31/2015

Materials: Analyzing Filler Content
The process is considered simple. But things aren’t always as they seem.