Hafnium Hf

	Form:	1.0 mm diameter wire
	Purity:	96.9%
	Source:	Alfa Aesar


	200 µ m

This is a reflected light micrograph of polished, carbon coated hafnium wire. The identifying etched label, which is a feature of our standards, is invaluable for navigating in an electron beam instrument. Hf and Zr are chemically very similar and always occur together in nature. Zr is more abundant and therefore can be purified, but refined Hf always contains a small amount of Zr.

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Cautionary Note

The compositional and other data shown here are intended to convey typical values for this item and do not neccessarily correspond in detail to standard mounts supplied in the past or to be supplied in the future. Items are changed from time to time as stock is exhausted or alternate choices are preferred. These data should, however, give someone contemplating the purchase of an SPI standard a fair indication of what they may expect to receive. Records are kept of all mounts sold so that, should you lose your documentation at some time in the future, we will be happy to replace it at no charge.

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