(opal: 
formed 
Gunter Be 
J.Eberkein, 
K.Ohla, Wi 
| Introd 
Complex 2 
posses low 
are suitab 
collection 
Wrowest 
CuAll0} 
Coll} 
ICuABM 
ICu All| 
(Cast alloy 
1G-CuA 
0G 
(G-CuA 
IG-CuA 
* not stand 
** not sta 
Table 1: E 
Inthe pres 
hot worke 
microstrug 
Trost 
presented 
bot worke 
The pe 
Complex a 
especially 
2. Materi 
The chem 
the most; 
behaving 
Compared 
nig 
Lo 
dor 
ifn 
38