from The American Heritage® Dictionary of the English Language, 4th Edition
- n. The study of the structure of metals and alloys, especially by optical and electron microscopy and x-ray diffraction.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. The study of the structure of metals and their alloys, by any of a variety of techniques
from the GNU version of the Collaborative International Dictionary of English
- n. The science or art of metals and metal working; also, a treatise on metals.
- n. A method of transferring impressions of the grain of wood to metallic surfaces by chemical action.
- n. A substitute for lithography, in which metallic plates are used instead of stone.
from The Century Dictionary and Cyclopedia
- n. An account of metals, or a treatise on metallic substances; the science of metals.
- n. A process of decorating metals.
- n. A method of engraving, allied to lithography, in which metallic plates are substituted for stones.
Advantage has been taken of a reprinting to revise, extensively, the portions of the book relating to the modern science of metallography.
The science of metallography has been developed in the past 25 years, and aided by precise methods of measuring temperature, has done much to systematize the information which we possess on metallic alloys, and steel in particular.
If you don't already know, metallography is a type of scientific microimaging that involves mirror-polishing metal surfaces and then etching them with various reagents to reveal their microstructures, which are often of breathtaking beauty.
So I woke up this morning all pumped up to blog about metallography.
Which fact also surprises me, by the way, because the equipment and techniques of metallography are very accessible to amateurs, especially relative to other modern methods of materials analysis.
This can be understood if one is aware that in an earlier draft of the WTC 7 report the NIST made the stark admission that "No metallography could be carried out because no steel was recovered from WTC 7.