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TEM Specimen Preparation

Introduction. Specimen preparation is an important aspect of the transmission electron microscopy (TEM)Objective: To make a TEM specimen which is representative of the material studied electron transparentMethods: depend on both the type of material and the information to obtain.. Tem pr

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TEM Specimen Preparation

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    1. TEM Specimen Preparation By Nibiao Zheng

    2. Introduction Specimen preparation is an important aspect of the transmission electron microscopy (TEM) Objective: To make a TEM specimen which is representative of the material studied electron transparent Methods: depend on both the type of material and the information to obtain.

    3. Tem preparation methods Powder material Plan-view specimens: surface study Cross-section specimens: interface study,...

    4. Powder specimen Grind the material Dissolve the powder into a solution, mix. Splash one drop of solution onto a copper grid with carbon supporting film Wait until the specimen is dry before observing in TEM

    5. Plan-view specimens Common methods Cut a 3mm disk using a ultrasonic disk cutter Pre-thin the disk: mechanical grinding dimpling (electro-polishing) Ion milling: dual-ion mill (cooling stage) 2. Special methods: Locally electro-polishing

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