Cakulntiotlsto theequationof State. Equationof StateNumber7612

Transcription

1 ,,, L 2 O D 0 A H P B S Cakulniolso hequaionof Sa f B Oxid:SESAME Equaionof SaNumb7612 j C I M W ; (/> 7 :, L A N L,,, L A N M 8

2 A O H P B S C T E O S F B O S E O S N P b J C B andj M Wills A H p b s c f B h a l v l d s p ( 0 K i i a i 1M A s h n b o c a o c i xs o i u A o m i l h i s x n s n S i o h o s s f B w i i B H w o c y o a d m p T n E w b a S l a m n 7 i B o ( i o g i o scinissfo divsasonsfis, h is a basici i B d i u p a I o 11-VI compounds(a vy imponancimso c i g B i a o c i m m s b o i b p ( c l c p p l c I a BO isoi g i a a m i n F B has bn of cuinginso o SESA,ME o s ( l u a i i i EOS f BO should bvisdasnw daabcomsa E B E i l h b c i q by cnhoical d fo a lagvolum disconinuiyphasansiiona high pssusfim h ambinwuzi (B4) suucuo h mo dnsocksal(b I ) phas TWO s i h

3 p i a ansiion bu hav disagd m u) h calcdad ansiion pssu (217 kba using h p mchod2 and abou 4(KI iba u s p i b m I a i d w h p a h p f p i c c - o ( K i f B u f p l m a ( b u m ( F m i s m o m u p 1 s B J I o invsigaionw conskiccdboh h B4 andb1 p a s a o f a d i d I o o c w b p a F I s o c p v c ( c P;IM c 20) f i a phass a f o p w m G f ( 2 s p v d c o f o d i F c h i a F I B - B p o w u W I [1 k a i a v c o 1 S a l v c c b n h a significan o h s a z n & n f y i o o s c b bjudgdby calculaingh H f B i a c i w xpimnhowv, sucha H calculaion ac o S E f B F s f f S E i s h k o s C g ag EOS whichincopoash nw O K isohm I S l EOS Sapaiiondino h msf p P and h innal E: P(OOT)= P, ( + P (PT) + P ( E(pT ) = E, (f))+ E fp,~) + E,(P,T) (2) w p i d a T i T subscipsc n, and ~ d c ionsd c c ( j nuclamoion, andh hmallcmicxciaionsh k huspossibl u i u a d m I p c w w f a g E f B w i o F 2

4 i h cold c F o H calcuhion wc fis fomcd J ncw cold cuv fo BcO by using h gcncd u p S E c p G o 0 K i i b a L m u i c b x s s o a m T F D ( c c a h c w m s A c g E fo B w k b u n a o c f a i EOS f BcO (SESAME nacial o numb 7 1 T m u f p o E w d i R 1 L H c c f f c B E Figu3 compasa U, vs ( l w c & ( i m p x c i a c b c h a i ] l ~ c c i i g a w c d f I 2 I c ~ k W f s s a U = 0 T d i d b s w a n c i c T o a w io q h g f c EOS ( l o T l i o B p o H is vidn in Figu 3 l a o p ansiion a i l impaca u d b o B i d m p i n c F i i p p p c b o b a m a f k E i c w p a u s l c b & d m of I F 3 phasb B b h i a l i m p q g s o U, w Up cunw c b d d f m F o b o l p h b obsvdin h quanz+su?mvi ~ phas ansiionin silica? which i q s B4+B1 ansiion in B@ u i s o c j d M EOS f B s b m any o k E i S l H s E jus 3

5 d i S libay wc hav chosn o fom sill anok c c f B i w w o J i 6 o p ussic x l d 0 K i i h p BI pksc and docs no poduc i wo-wav snjc- c s u i m p T a M h c ah U, vs Up H i B w machsh cxpcimcnal LIwain h low pssucqion mwchcs h u s l i F 3 f high pssu cgmn and conncs h wo wih a hoizonal lin in h mixd p T h c i s i F 3 I a c b y b h ((, I p ( 1 1 ( 6 1 ( 1 i I8 1 a i k 7 U C o i G w h g u n L B b c f H d o d I i F o 3 Tha cold cm h b c w n a c [ c m f m n 7 f a n g E f B w w b a S a libay as maialn 7 F 4 c c c f 7 w f 7 A i of h M+BI phasansiionis obviousevn a h highspssusshownin Fig 4 IAou 15 M n c c p i a 2 l f 7 A a u q a a b o B i a w ln m p ( M 7 s b v s 7 ( 7 f P>2, T 7 s b B E o c f m p F a w a d o ~ E o BO i m p u s c d c n u 7 a 7 d i of h EOS Sono hicsuhsw a f o B i x n 4

6 BO u Loal G 1 o I i 0 15 fj/p o 20 F 1 - T p v d p c via k FLMTO mhodfo h B4 and B p o B T s l i c OK i w m z G f

7 I I I I I P/P o F 2 CaIculaud OK isohmfo B@ obamcdwihflmto calculaions

8 ~ _ -- L- 1 1 f I -i; / + I 00 1G ;() 30 ~,o 5,0 ~,o 7 () Up (km,%) b F 3 =Th calculadpincipalhugcmiofo BcO (solidlin) iscompado hxpcinwnal daaof Rf 6 Also shownish svaigh[incfi usdin gcncahg maialnumb7 ( h)

9 2 - - L L _ - 2 u 2 1 1()0,?,?, I O g,o 1 Dnsiy (gin/cc) Figu4- C c a s f m numbs7612 (did lin) and7 f Iinc)

10 REFERENCES I J C Bavgw andj M Wills SESAME Equaionof SaNumh7611, Byllium Oxid Los AlamosNaionalLahoaIoyRcpoILA-11761LMS(Apil 1990) 2 K J ChangWI M L Cohn,Sol SaI Conm50, 4X7 ( 19R4) 3 A P JcphcoaI,R J Hcmlq H K Mao R E Cohnami M, J MhL Ph}s Rv B (1988) 4 JosphAhdailahJ, UssManual fo GRIZZLY Los Alamw NaionalLahua~ qwl LA M (Scpwnx 1984j s R, D CowanandJ A$hkm,ph~sRc$ 105 \44 (1957) 6 S P Mash H!gh Tcmp High Pmswcs 5 S03 (1973} and S P Mash cdio M S H D [ C RMS, IWUM u 7 J C Bwgw ad S P L~on, NONMulsphasEquamnof Safo PolycysdlincQsanL Los A)amosNaxwd Laboao)RcpoILA MSKkohc 1%X)) 9

11 l?usfcponb b?umpmducd6 fail* bcu m m c1u vaifabk@doead m ~ - * Ofb ofscnduml amkd WamaiaL POBoa629 w wg,~ 3n3i Pnca m avadal hall (61S)S768401~ u Svdbbk * * pubkfmnl* NaIimalTahIicd f u~ ~~ -= 528$m RoyalRd -~va l