Simple Recording Spring Balance

Abstract

A simple recording balance has been designed for use in high temperature oxidation studies. A helical spring is the weighing mechanism; a light beam and silicon solar cell, the spring position detector. The signal from the solar cell is fed directly to a strip chart recorder without prior amplification. The construction allows for heating of the system which permits the use of the balance in condensable atmospheres. The specifications of the balance in use are: maximum load, 1.5 gj range, 200 mgj sensitivity, 0.5 mg.

A Comparison of the Oxidation of Fe&&bond;Cr, NiCr and CoCr alloys in oxygen and water vapour

“…I t can only be postulated that chromium additions to FeO enhance its growth rate by affecting the degree of defect association and interaction. In one study (39), there is no evidence of chromium increasing the cation vacancy level of FeO in any simple manner, but it may reduce the cation interstitial concentration.…”