Beitrag zur metallographischen Untersuchung von einkristallinem Galliumphosphid

✍ Scribed by Dipl.-Min. W. Muschner

• Publisher: John Wiley and Sons
• Year: 1970
• Tongue: English
• Weight: 736 KB
• Volume: 5
• Category: Article
• ISSN: 0232-1300
• DOI: 10.1002/crat.19700050413

✦ Synopsis

Aus dem Vorhandensein polarer directions in the lattice type to be studied, and having t o be considered in metallographic studies. Investigations on specimen preparation and chemical etching are described. Etching experiments on monocrystalline GaP specimens oriented in [ l l l ] direction were performed in order to determine the possibilities for applying various etching agents to etch polishing, to identification of A (111) and B (111) faces and to visualization of dislocation etch pits on A (111) face. For determining the density of dislocation etch pits on A (111) faces, etch polishing by aqua regia followed by structural etching by an alkaline solution of potassium hexacyanoferrate(II1) has proved to be the most effective method.
Results found by microhardness determination according to Hanemann on A ( 1 11) and B (111) faces are reported.