Valentin

Ingredients: kesterite bulks, carbon boats, liquid nitrogen, quartz ampoule Hi everybody today we are going to prepare one of my favorite “dishes”- Homogeneous kesterite. But first of all, put on gloves and lab coats to protect yourself from accidents. Preparation can be divided in the following steps: 1.Grinding Put kesterite bulks in an agate mortar and grind them using a pestle until you obtain a homogenous mass (powder). Imagine that you are making mashed potatoes. 2.Pressing pellets Use a hydraulic press to turn your powders into cylindrical pellets. To do this, fill the pressing tool with the powder and press it for 5 minutes. WhenRead More →