s {  > s { >

 s 

 s  q h  i1#,c8c s  < 



 s  q h  i1#,c8c

s  <  b: 52l s   s   s      s {2 tu9u {  k b! : }59#    <{3kz  {  =z # s zs 
 


 

 s  #

1.u:81

2. u* u#c

3.~u  {68:-139#

4., y8

5. 7  v#{7  u: 6#; 

6.| 1 c

 s  3046A12O3 s   s    <r g-v?y : l {/} c1350 s8 s  {60.51.3g/cm3 y2.09.8MPa5 0.2210.442w·(m·K)1(1350)

 s ~= 82

~{2 ; :xϭ s 95  o?  o~7, i=

92

   <

7
���� s� �_�����{������_�����{����_s� ���
s {  > s { >

 s 

 s  q h  i1#,c8c s  < 



 s  q h  i1#,c8c

s  <  b: 52l s   s   s      s {2 tu9u {  k b! : }59#    <{3kz  {  =z # s zs 
 


 

 s  #

1.u:81

2. u* u#c

3.~u  {68:-139#

4., y8

5. 7  v#{7  u: 6#; 

6.| 1 c

 s  3046A12O3 s   s    <r g-v?y : l {/} c1350 s8 s  {60.51.3g/cm3 y2.09.8MPa5 0.2210.442w·(m·K)1(1350)

 s ~= 82

~{2 ; :xϭ s 95  o?  o~7, i=

92

   <

7
���� s� �_�����{������_�����{����_s� ���
s {  > s { >

 s 

 s  q h  i1#,c8c s  < 



 s  q h  i1#,c8c

s  <  b: 52l s   s   s      s {2 tu9u {  k b! : }59#    <{3kz  {  =z # s zs 
 


 

 s  #

1.u:81

2. u* u#c

3.~u  {68:-139#

4., y8

5. 7  v#{7  u: 6#; 

6.| 1 c

 s  3046A12O3 s   s    <r g-v?y : l {/} c1350 s8 s  {60.51.3g/cm3 y2.09.8MPa5 0.2210.442w·(m·K)1(1350)

 s ~= 82

~{2 ; :xϭ s 95  o?  o~7, i=

92

   <

7