340 Prakt. Met. Sonderband 30 (1999) 
6007 1000 
500 | ooo] —e- 900°] 
E 800% —a—1050°C 
_ 400 E 700 vy —v-1150°C 
g | = N 
300 600 
g o 2. ! 
> > A 
A 200 N N wn 500-1 
= 900°C 400 
1004 —a-1050°C 
. —v150°C 300- 
nd —_— a ——— =. + 2004 — . . 7. — 
0 20 40 60 80 100 120 1 20 40 60 80 100 120 
a) Time, min b) Time, min 
600-7 30000 
500 | 00°C _ 25000] 
—a-1050°C g 
400: —v1150°C 20000 
E 2 coool. “a= 900°C 
300 2 Z 4 —a1050°C 
> | > Ce 0, 
vi 200d wn” 10000 + vse 
' * 
1004! som, ~ -— 
+ ° 
: E— —_—_——— A 
SR Lo oe 
- 20 40 60 80 100 120 7 20 n 60 80 100 120 
c) Time, min d) Time, min 
1000 | 1600 
a 900°C] 1400 —— 900) 
800 $ —a-1050°C 2 0, [te 
0, V- 
© cools AIC E 1000-1 = 
Te > 
E ! > 800 
> 4 > 
nn anf > 01 
400 
wy 200 
a 1 . 1 ’ Tr ~~ rr 04 _— Tr — TT Sr ST I 
0 20 40 60 80 100 120 0 20 40 60 8 100 120 
e) Time, min D Time, min 
600 | 3000., 
00 2500] 3 
= TT HZ 
m 400 E 2000 pA .— 
E 300 = 1500 
"o 2 
wr , —0— 900° 2 
200 —a—1050° w” 10004 he 900° 
/ | —a—1050° 
100 J 500. — 
dae 0 
vr ——— TT 7 
0 20 40 60 80 100 120 0 20 40 60 80 100 120 
g) Time, min h) Time, min 
Fig.2: Effect of annealing time and temperature on the surface density, Sy, and specific surface of 
phases, Sy/Vy. 
Yb 
Yai 
Y2i 
Gc 
Cc