Tests: 10 Mistakes that Most People Make

Microhardness Testing Essentials – Vickers and Knoop Hardness Tests Hardness test systems use an indenter probe which is displaced into a surface under a precise load. The indentation usually has a pre-set dwell time. Traditional mechanical testing requires the measurement of the indentation’s size or depth in order to determine hardness. Hardness testing comes in two ranges: macrohardness and microhardness. Macrohardness includes testing with an applied load above 1 kg or around 10 Newton (N). Microhardness testing with below 10N applied loads is generally used for tiny samples, thin specimens, thin films or plated surfaces. Vickers and Knoop hardness tests are the two most common microhardness techniques used today. For more exact and repeatable results, microhardness testing has to be responsible for the effects of sample preparation, size and environment. Samples should fit in the sample stage and lay perpendicular to the tip of the indenter. A really rough surface … Read More

Smart Tips For Uncovering Landscapers

A Guide to Commercial Lawn Mowing Services when you have a well-manicured lawn, and it makes you feel good because the environment is fresh and conducive. Time can be a challenge for the busy people who do not have and would want to have a well maintained and manicured lawns. This is now possible with the help of the professional lawn mowers who will give you the services of maintaining your compound. These people are very helpful. The most effective way to get a great yard is letting someone who is a professional take care of it. The professional lawn mowers will be able to make your compound beautiful by cutting the hedges and also planting other additional plants to make your yard look even more beautiful. The commercial lawn mowers will save you time in addition to saving you the cost because they will know where to buy the … Read More