Gummibärchen unter die Lupe genommen

Fruchtgummis sind lecker und schmecken das ganze Jahr, ob im Sommer oder Winter, ob in der Wüste bei 50 °C oder am Nordpol bei -40 °C. Die Leckereien scheinen ein breites elastisches Eigenschaftsspektrum aufzuweisen, das zwischen weich und hart variiert und stark temperaturabhängig ist. Für die Charakterisierung der viskoelastischen Eigenschaften wird hier die dynamisch-mechanische Analyse eingesetzt.

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Gummy Bears Under the Microscope

Fruit gummies are delicious and taste good throughout the year, be it in summer or winter, in the desert at 50°C or at the North Pole at -40°C. The goodies seem to exhibit a broad spectrum of elastic properties, varying between soft and hard and are strongly influenced by temperature. Dynamic-mechanical analysis is employed for the characterization of visco-elastic properties.

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Winter- und Sommerreifen oder doch lieber Ganzjahresreifen?

Der Reifenwechsel steht zweimal jährlich an. Doch ist es wirklich notwendig, die Sommerreifen alle sechs Monate gegen Winterreifen zu tauschen? Ist es nicht besser, auf beides zu verzichten und stattdessen Ganzjahresreifen zu nutzen? Wir haben die Antwort für Sie.

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Winter and Summer Tires or Rather All-Season Tires?

Twice a year it’s time to change tires. But is it really necessary to replace summer tires with winter tires every six months? Isn’t it better to do without the two and use all-season tires instead? We will answer that question for you.

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How Fillers Increase Isotropic or Anisotropic Behavior of SLS Parts through Their Alignment

In general, the addition of fillers leads to an increase in mechanical performance. While a critical length of the fillers is needed to have an effect on the strength of components, the stiffness is already increased with fillers with small aspect ratios. To understand how the stiffness or modulus change as a function of the filler geometry and filler content, Dynamic Mechanical Analysis (DMA) can be used. Learn more in our article!

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Material Science in Additive Manufacturing: Estimating Residual Stresses in PBF Parts Using Dynamic Mechanical Analysis

In our last episodes, we focused mainly on thermal material behavior measured with Differential Scanning Calorimetry (DSC). Today, Dr. Nathalie Rudolph will talk about how residual stresses can be estimated using Dynamic Mechanical Analysis (DMA).

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Estimating Residual Stresses in SLS Parts Using DMA

SLS Residual Stress DMA NETZSCH

Selective Laser Sintering (SLS) is one of the most used Additive Manufacturing technologies to produce structural plastic parts. When operated at elevated temperature, any residual stresses could be detrimental for the part performance. In order to better understand residual stresses, knowledge of a material’s modulus is needed. Learn more about residual stress and how to measure the material property using a thermal analysis method.

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Überwachung elastomerer Werkstoffe in der Anwendung zur Ermittlung der Materialversagensgrenze

NETZSCH_Elastomer_Seal_Diplexor

Das geforderte mechanische und dielektrische Eigenschaftsprofil von Elastomerwerkstoffen wird durch die Auswahl des geeigneten Polymers, Füllstoffs und der Additive für den Anwendungsbereich erreicht. Während ihrer Lebensdauer unterliegen elastomere Werkstoffe in Reifen-, Dichtungs- und Automobilanwendungen einer ständigen Veränderung. Lesen Sie mehr über die Möglichkeit zur Überwachung der mechanischen Eigenschaften von Elastomerwerkstoffe während der Anwendung.

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Monitoring Mechanical Properties of Elastomeric Materials During Application

NETZSCH_Elastomer_Seal_Diplexor

The required mechanical and dielectric property profile of elastomeric materials is achieved by selecting the suitable polymer, filler and additives for the application field. During their service life, elastomeric materials in tire, sealing and automotive applications undergo constant change. Read more about the cost-effective way to monitor the mechanical properties of the elastomeric materials during application.

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