Learn & Share: Surface Metrology
Surface metrology refers to the measurement and analysis of a material’s topography (surface structure). Most often it concerns the characterization of surface roughness, the extent to which a surface deviates from being ideally smooth due to protrusions, recessions, irregularities, undulations with peaks and troughs, etc. These deviations from flatness are typically over a size scale from nanometers to micrometers.
Surface roughness can have an important influence on many interfacial phenomena, such as electromagnetic wave transmission and reflection, photoelectrical properties, electrical and thermal conduction, adsorption, adhesion, wetting, among others. These phenomena can play important roles in mechanical, electrical/electronic, thermal, fluid dynamic, chemical, and biological effects which are exploited for scientific and technical applications. In addition, surface roughness is critical for some manufacturing processes in specific industries, such as microelectronics, materials, automotive, aerospace, to name a few. In order to find the optimal specifications for these production processes, it must be understood how the roughness affects product performance. The ability to control roughness during fabrication can result in better process optimization leading to higher assurance of product quality and more cost-effective production.
- The analysis of fired cartridges for primer cup morphology and flattening and firing pin impression (crater) depth using topographic data is discussed in this article. Topographical analysis of the…Read article
- Watch this video to learn how you can save time when doing topographic analysis using the Leica Map software. The software allows you to go quickly from automated analysis of multiple sets of acquired…Read article
Digital Microscopy with Versatile Illumination and Various Contrast Methods for More Efficient Inspection and Quality ControlState-of-the-art digital microscopes utilizing a versatile illumination system capable of achieving multiple contrast methods, such as the Leica DVM6, are very useful for inspection, quality control,…Read article
Nanoscale or Microscale Structures Formed in Polymers Containing Nanotubes Greatly Enhance the Electrical Conductivity: Potential Applications for Photovoltaic DevicesThe excellent mechanical and electrical properties of carbon nanotubes have led to them being exploited for the creation of a new class of high performance polymer composites. Due to important…Read article
- Thin film characterization technologies are in high demand, given the wide-spread use of coatings in all engineering and science fields. The properties of thin films can vary dramatically, i.e.…Read article
- Surface free energy (SFE) is a property which depends on the chemical state and roughness of the surface and it is necessary to develop a reliable method to evaluate SFE value on a small area, taking…Read article
- Acidic beverages, such as soft drinks (orange juice, and cola), or ethanol (whisky), can produce erosion of resin composites. The surface degradation of resin materials is related to the content and…Read article
The Effects of Peri-implantitis Decontamination Treatments on the Surface Roughness and Chemistry of a Titanium Alloy Used for Dental Implants: Implications for Bone ReintegrationTitanium (Ti) alloys are biocompatible materials which are often used for human implants, especially in dentistry. For this study, different types of odontological (dental) treatments for…Read article
- The precise measurement of surface structures and topography is the key thing during the production, control and development in many sectors of industry or research. Because very often there is not…Read article
- Micro-optic components are used in a host of products concerned with illumination or imaging. Quality control of these components is challenging, as inspection has to be highly accurate yet…Read article