Microstructure and electric properties of lead lanthanum titanate thin film under transverse electric fields Z. T. Song Department of Applied Physics and Materials Research Center, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong, China and State Key Laboratory of Functional Materials for Informatics, Shanghai Institute of Metallurgy, Chinese Academy of Sciences, 865 Changning...

The residual porosity is an unavoidable phenomenon of the components produced by powder metallurgy process which in turn largely affects the strength property of the same. Now a day it is possible to control porosity of powder metallurgy components and retain them to desired amount when required. The porosity of a powder metallurgy component is greatly depends on the sintering temperature. In t...

Measurements which show the potential for corrosion of a plant’s metallurgy due to interaction with the system water have gained in importance within the last two decades. Among the most successful of these measurements are those which measure an actual potential which is based upon the oxidation/reduction reactions taking place. The measurement of Oxidation Reduction Potential (ORP) has been u...

early a million years ago, mankind’s technological march through time beN gan after fire was mastered. Metalworking, which evolved into metallurgy, is the oldest and most successful technology. It spans at least 12,000 years (Figure 1). Soldering, a key metal joining technology, was probably developed about 7,000 years ago when lower melting, naturally occurring metal alloys were placed in the ...

Geochemical measurements on well-dated sediment cores from Lake Er (Erhai) are used to determine the timing of changes in metal concentrations over 4500 years in Yunnan, a borderland region in southwestern China noted for rich mineral deposits but with inadequately documented metallurgical history. Our findings add new insight into the impacts and environmental legacy of human exploitation of m...

The atmospheric deposition of heavy metals in Albania was investigated by using a carpet-forming moss species (Hypnum cupressiforme) as bioindicator. Sampling was done in the dry seasons of autumn 2010 and summer 2011. Two different sampling schemes are discussed in this paper: a random sampling scheme with 62 sampling sites distributed over the whole territory of Albania and systematic samplin...