Phase Diagrams for Metal and Alloy

The mechanical properties of materials depend strongly upon microstructure and the development of microstructure of an alloy is related to the characteristics of its phase diagram. Therefore, the understanding of phase diagrams for alloy systems is very important. Phase diagram is very useful to represent the most stable relationships between phases in alloy systems. In addition, phase diagrams provide valuable information about melting, casting,...

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Bioceramics And Their Applications

1. Hydroxyapatite (HA) 1.1. Introduction Hydroxyapatite (HA) is a member of the apatite group of ceramics. The term “apatite” is derived from the Greek apatê, which means deceit or deception. It was called such for its diversity of form and color. 1.2. Source There are two sources of apatite: one biological and the other from mineral deposits, such as phosphate rock or phosphorite, a sedimentary rock the essential mineral components of which is carbonate fluoroapatite. Bone and teeth contain a HA-like mineral component that supports the majority...

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Solder Bebas Timbal

Solder merupakan paduan logam yang digunakan untuk menggabungkan dua atau lebih komponen. Komponen yang disatukan itu bisa berupa logam atau paduan logam lain. Solder digunakan secara ekstensif pada industri elektronik untuk menyatukan komponen secara fisik agar dapat menghantarkan sinyal listrik. Solder bekerja dengan meleleh oleh adanya panas. Lelehan solder kemudian mengalir dan membuat kontak dengan komponen yang akan bergabung (yang tidak...

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