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A model of a late 19th-century Canadian (Yukon) seal used to certify the quality of assayed gold. A metallurgical assay is a compositional analysis of an ore, metal, or alloy, usually performed in order to test for purity or quality. Some assay methods are suitable for raw materials; others are more appropriate for finished goods.
The transient techniques perform a measurement during the process of heating up. The advantage is that measurements can be made relatively quickly. Transient methods are usually carried out by needle probes. Non-steady-state methods to measure the thermal conductivity do not require the signal to obtain a constant value.
Metal testing is a process or procedure used to check composition of an unknown metallic substance. [1] There are destructive processes and nondestructive processes. Metal testing can also include, determining the properties of newly forged metal alloys. With many chemical-property databases readily available, identification of unmarked pure ...
Metallography. Metallography is the study of the physical structure and components of metals, by using microscopy. Ceramic and polymeric materials may also be prepared using metallographic techniques, hence the terms ceramography, plastography and, collectively, materialography.
Metallurgical failure analysis. Metallurgical failure analysis is the process to determine the mechanism that has caused a metal component to fail. It can identify the cause of failure, providing insight into the root cause and potential solutions to prevent similar failures in the future, as well as culpability, which is important in legal ...
The characterization technique optical microscopy showing the micron scale dendritic microstructure of a bronze alloy. Characterization, when used in materials science, refers to the broad and general process by which a material's structure and properties are probed and measured. It is a fundamental process in the field of materials science ...
Elemental analysis is a process where a sample of some material (e.g., soil, waste or drinking water, bodily fluids, minerals, chemical compounds) is analyzed for its elemental and sometimes isotopic composition. [citation needed] Elemental analysis can be qualitative (determining what elements are present), and it can be quantitative ...
Analytical technique. Proposed since September 2024. Analytical technique is a method used to determine a chemical or physical property of a chemical substance, chemical element, or mixture. [1] There is a wide variety of techniques used for analysis, from simple weighing to advanced techniques using highly specialized instrumentation.