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COST 507 - Repositório Aberto da Universidade do Porto

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uu<br />

120<br />

February<br />

1988 TI- Ca -Ba-Cu-0<br />

1<br />

1 I<br />

no<br />

too<br />

* 90<br />

g<br />

έ· 80<br />

Liquid Ν;<br />

January 1988 Bi- Ca- Sr- Cu-0<br />

April 1987 Y- Ba-Cu-0 |<br />

March 1987 Y- Ba-Cu-0<br />

/<br />

Q.<br />

J 60<br />

I 50<br />

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30<br />

20<br />

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η<br />

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Nb£<br />

S<br />

B1-era . A15-era<br />

March 1987 La-Sr-Cu-0 ι<br />

January 1987 La-Ba-Cu-0<br />

January 1987 La-Sr-Cu-0 ι<br />

April 1986 La-Ba-Cu-0<br />

Oxides<br />

NbNj *%£ * ' - * - ^ Lo-Bo-Cu-O<br />

BoPbi r .'.Bi&<br />

BŒ<br />

Fig. 16: Evolution of high Tc-Superconductors<br />

a<br />

Cellular<br />

Structure<br />

Anisotropy<br />

GO<br />

<<br />

-10<br />

-10'<br />

-io ;<br />

-10<<br />

-io f<br />

-io É<br />

Polymers<br />

Metals<br />

Ceramics<br />

Stone<br />

Wood/Bone<br />

Fig. 17: Challenges and trends in materials development<br />

- 51 -

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