10 
Orientation No orientation the 
relationship relationship Oxi 
between phases between phases 
0 h “act The 
ne PRS haces Normal Anomalous 
as nucleus py? 
N h t met 
Oo phase acts Degenerate +0 
nucleus ) 
a res 
The empty space indicates that no orientation relationship can exist cur 
between the phases without a simultaneous nucleation effect. ris 
as 
EXPERIMENTAL TECHNIQUE AND RESULTS cur 
The apparatus used in this study is schematically shown in figure 1. eac 
Apparatus consisted of a levitation melter, temperature measurinc and cal 
recording system, and a quenching medium. The levitation melter consi- Ear 
sted of a two reversed turns copper coil which was coupled to a 400 KC, det 
DOM 
dis 
dir 
(52 
vac 
hic 
was 
wer 
mn SAMPLE PosiTiONER con 
wo=coLon a The 
PYROMETER 
= ; use 
phe a —. 
Ltd aa bn hi LEVITATED CHARGE The 
Te Eee lin 
Se — x as 
1 GAS IN 
The 
E—— was 
1 of 
E ASTI DIAPHRADM A E 
Ce En JM MED ane 
Fig. 1 - The experimental apparatus - diagram depicts the levitation 
device and optical pyrometer. 
29 0