Topic: materials-science

Why do your materials break? Tensile testing: inspecting the breaking mechanisms of materials with SEM

By Luigi Raspolini - Sep 27, 2018

Tensile testing is a commonly-used analysis that provides information on the resilience of an object and how much resistance it can offer to traction or compression. Such tests can be performed on a large variety of materials and provide useful information to speculate on the behavior of a material when it undergoes a stress. The main purpose of the tensile test is to evaluate relevant parameters (like the Young's modulus, for example) or to study the how shear stress affects the material. This allows researchers to create models and design better materials. But how can you see what is happening? A scanning electron microscope (SEM) with tensile testing capabilities can provide you with that information.

Tensile testing is a commonly-used analysis that provides information on the resilience of an object and how much resistance it can offer to traction or compression. Such tests can be performed on a large variety of materials and provide useful information to speculate on the behavior of a material when it undergoes a stress. The main purpose of the tensile test is to evaluate relevant parameters (like the Young's modulus, for example) or to study the how shear stress affects the material. This allows researchers to create models and design better materials. But how can you see what is happening? A scanning electron microscope (SEM) with tensile testing capabilities can provide you with that information.

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Additive manufacturing: improving the quality of AM processes through SEM analysis

By Antonis Nanakoudis - May 17, 2018

In a previous blog, we introduced Additive Manufacturing (AM) as a new manufacturing approach and described its key points (you can read the blog here). Additive Manufacturing, also known as 3D printing or rapid prototyping, has attracted the attention of many people and industries around the world due to its unlimited and promising potential. In this blog we will describe how the use of a Scanning Electron Microscope (SEM) can be a powerful tool to monitor and improve the quality of additive manufacturingprocesses.

In a previous blog, we introduced Additive Manufacturing (AM) as a new manufacturing approach and described its key points (you can read the blog here). Additive Manufacturing, also known as 3D printing or rapid prototyping, has attracted the attention of many people and industries around the world due to its unlimited and promising potential. In this blog we will describe how the use of a Scanning Electron Microscope (SEM) can be a powerful tool to monitor and improve the quality of additive manufacturingprocesses.

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Effective asbestos detection with a Scanning Electron Microscope (SEM)

By Luigi Raspolini - May 10, 2018

Resistance to fire, sound absorption, tensile strength and low price caused a boost in asbestos mining activities at the beginning of 19th century.

Already used in the production of asphalt, brake pads, electrical insulators, fireproof suits, technical fabrics and other everyday products, asbestos started its golden century when the Austrian engineer Ludwig Hatschek invented the first asbestos-cement, often mistakenly referred to as Eternit.

The material properties, particularly its lightness and resilience, started a real revolution in the construction engineering and asbestos-cements factories, which immediately emerged all over the world.

Resistance to fire, sound absorption, tensile strength and low price caused a boost in asbestos mining activities at the beginning of 19th century.

Already used in the production of asphalt, brake pads, electrical insulators, fireproof suits, technical fabrics and other everyday products, asbestos started its golden century when the Austrian engineer Ludwig Hatschek invented the first asbestos-cement, often mistakenly referred to as Eternit.

The material properties, particularly its lightness and resilience, started a real revolution in the construction engineering and asbestos-cements factories, which immediately emerged all over the world.

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How SEM helps research polymers characteristics, properties, and uses

By Luigi Raspolini - Apr 19, 2018

Polymers have many uses and applications: engineered combinations of monomers produce a nearly infinite number of molecules with different properties, which are determined by the chemical composition and structure of the molecule. The form of the molecule has a big influence on how the polymer will behave when exposed to different external forces. In this blog, you’ll find practical examples of how Scanning Electron Microscopes (SEMs) can provide unexpected results.

Polymers have many uses and applications: engineered combinations of monomers produce a nearly infinite number of molecules with different properties, which are determined by the chemical composition and structure of the molecule. The form of the molecule has a big influence on how the polymer will behave when exposed to different external forces. In this blog, you’ll find practical examples of how Scanning Electron Microscopes (SEMs) can provide unexpected results.

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How a desktop SEM saves lab operators a lot of time

By Karl Kersten - Apr 6, 2018

Is it true that as a lab operator, you work under constant time pressure? Do you find it challenging to deliver output quickly? And does it take hard work to maintain your high standard of quality? This blogs explains how a desktop scanning electron microscope (SEM) can be used to increase your research productivity and therefore to save a lot of time.

Is it true that as a lab operator, you work under constant time pressure? Do you find it challenging to deliver output quickly? And does it take hard work to maintain your high standard of quality? This blogs explains how a desktop scanning electron microscope (SEM) can be used to increase your research productivity and therefore to save a lot of time.

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How scanning electron microscopy is used for cosmetics research and development

By Dr. Jasmin Zahn - Mar 29, 2018

Since ancient Egyptian times, cosmetic products have been used to enhance the human appearance. Research around cosmetics therefore deals not only with the development of new substances and the analysis and enhancement of existing ones, but also with the interaction of components with tissue. In this short blog, we introduce you to three examples that show the link between research within the cosmetic industry and scanning electron microscopy (SEM).

 

Since ancient Egyptian times, cosmetic products have been used to enhance the human appearance. Research around cosmetics therefore deals not only with the development of new substances and the analysis and enhancement of existing ones, but also with the interaction of components with tissue. In this short blog, we introduce you to three examples that show the link between research within the cosmetic industry and scanning electron microscopy (SEM).

 

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What is additive manufacturing technology? How does the process work?

By Antonis Nanakoudis - Mar 22, 2018

Additive manufacturing is a relatively new manufacturing approach that has attracted the attention of many people and industries around the world due to its unlimited and promising potential. In this blog we will describe what Additive Manufacturing (AM) is and how it works and in a follow-up blog we will explain how SEM analysis can assist in improving the quality of the AM processes.

Additive manufacturing is a relatively new manufacturing approach that has attracted the attention of many people and industries around the world due to its unlimited and promising potential. In this blog we will describe what Additive Manufacturing (AM) is and how it works and in a follow-up blog we will explain how SEM analysis can assist in improving the quality of the AM processes.

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How SEM helps perform automated quality control on phosphate coatings

By Marijke Scotuzzi - Mar 16, 2018

We are surrounded by products that, for either decorative or functional purposes, are covered with coatings; from paintings and lacquers, to adhesive or protective coatings, optical, catalytic or insulating coatings. Of all these coatings, conversion phosphate coatings play an important role, especially in the automotive industry: they are used for corrosion resistance and lubricity. Since these coatings are used for critical parts, the coating process must undergo thorough quality checks. These checks consist of the analysis of the morphology of the coating as well as the percentage of coverage. In this blog, we describe and analyze how automated tools combined with SEMs can be helpful in quality checking phosphate coatings.

We are surrounded by products that, for either decorative or functional purposes, are covered with coatings; from paintings and lacquers, to adhesive or protective coatings, optical, catalytic or insulating coatings. Of all these coatings, conversion phosphate coatings play an important role, especially in the automotive industry: they are used for corrosion resistance and lubricity. Since these coatings are used for critical parts, the coating process must undergo thorough quality checks. These checks consist of the analysis of the morphology of the coating as well as the percentage of coverage. In this blog, we describe and analyze how automated tools combined with SEMs can be helpful in quality checking phosphate coatings.

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SEM analysis of PVDF-HFP nanofibers for the fabrication of energy harvesters

By Marijke Scotuzzi - Mar 8, 2018

Nowadays, energy harvesting is seeing an increasing interest from the research community, a fact that is confirmed by the rising number of publications. Energy harvesting has a wide range of applications, ranging from portable electronics, such as wristbands, to implanted medical devices like pacemakers. In this field, researchers are focusing their attention on the development of new energy harvesters that satisfy strict requirements: they need to be light and small, but also cheap and highly portable. In this blog, we discuss the fabrication of energy harvesters made from PVDF-HFP nanofibers on PDMS and SF substrates. We investigate how these energy harvesters are characterized and what the role of SEM is in this study.

Nowadays, energy harvesting is seeing an increasing interest from the research community, a fact that is confirmed by the rising number of publications. Energy harvesting has a wide range of applications, ranging from portable electronics, such as wristbands, to implanted medical devices like pacemakers. In this field, researchers are focusing their attention on the development of new energy harvesters that satisfy strict requirements: they need to be light and small, but also cheap and highly portable. In this blog, we discuss the fabrication of energy harvesters made from PVDF-HFP nanofibers on PDMS and SF substrates. We investigate how these energy harvesters are characterized and what the role of SEM is in this study.

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SEM and fiber analysis for filtration systems quality control

By Luigi Raspolini - Feb 16, 2018

The production of filters and membranes undergoes several quality control steps to ensure that the properties of the product are up to specification. Different tools can be used for such analysis, but only one can provide the best results. Find out in this blog how Scanning Electron Microscopes (SEM) can be used to investigate imperfections in metallic filters.

The production of filters and membranes undergoes several quality control steps to ensure that the properties of the product are up to specification. Different tools can be used for such analysis, but only one can provide the best results. Find out in this blog how Scanning Electron Microscopes (SEM) can be used to investigate imperfections in metallic filters.

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