A system with adjustable positive or negative thermal expansion

被引：88

作者：

Grima, Joseph N. ^{[1
]}

Farrugia, Pierre S. ^{[1
]}

Gatt, Ruben ^{[1
]}

Zammit, Victor ^{[1
]}

机构：

[1] Univ Malta, Fac Sci, Msida MSD 06, Malta

来源：

PROCEEDINGS OF THE ROYAL SOCIETY A-MATHEMATICAL PHYSICAL AND ENGINEERING SCIENCES | 2007年 / 463卷 / 2082期

关键词：

adjustable thermal expansion coefficient; negative thermal expansion; thermal contraction; COMPOSITES;

D O I：

10.1098/rspa.2007.1841

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

We analyse the anisotropic thermal expansion properties of a two-dimensional structurally rigid construct made from rods of different materials connected together through hinges to form triangular units. In particular, we show that this system may be made to exhibit negative thermal expansion coefficients along certain directions or thermal expansion coefficients that are even more positive than any of the component materials. The end product is a multifunctional system with tunable thermal properties that can be tailor-made for particular practical applications.

引用

页码：1585 / 1596

页数：12

共 16 条

[1] Negative thermal expansion [J].