scispace - formally typeset
Search or ask a question
JournalISSN: 0261-8028

Journal of Materials Science Letters 

Springer Science+Business Media
About: Journal of Materials Science Letters is an academic journal. The journal publishes majorly in the area(s): Microstructure & Thin film. It has an ISSN identifier of 0261-8028. Over the lifetime, 11113 publications have been published receiving 123781 citations.


Papers
More filters
Journal ArticleDOI
TL;DR: In this paper, the authors presented a new mechanism to achieve a negative Poisson's ratio in a two-dimensional arrangement of rigid squares connected together at their vertices by hinges as illustrated in Fig. 1.
Abstract: Auxetic materials exhibit the very unusual properties of becoming wider when stretched and narrower when squashed [1], that is they have negative Poisson’s ratios. Apart from the pure scientific interest of having materials showing such an unconventional property, a negative Poisson’s ratio gives a material several other beneficial effects such as an increased shear stiffness, an increased plane strain fracture toughness and an increased indentation resistance. These properties make auxetics superior to conventional materials for many practical applications [1, 2]. In recent years several auxetics have been fabricated by modifying the microstructure of existing materials, including foams [2] and microporous polymers [3]. A number of molecular auxetics have also been proposed [4–9] one example being α-cristobalite [7]. The auxetic behavior in these materials can be explained in terms of their geometry and deformation mechanism. Thus, the hunt for new auxetic materials is frequently approached through searching for geometric features which may give such behavior [9, 10]. In this letter we present a new mechanism to achieve a negative Poisson’s ratio. This is based on an arrangement involving rigid squares connected together at their vertices by hinges as illustrated in Fig. 1. This may be viewed as a two dimensional arrangement of squares or as a projection of a particular plane of a three dimensional structure. This latter type of geometry is commonly found in inorganic crystalline materials [8, 9, 11]. Referring to Fig. 1, for squares of side length “l” at an angle θ to each other, the dimensions of the unit cell in the Oxi directions are given by:

604 citations

Journal ArticleDOI
TL;DR: In this paper, transmission electron microscopy (TEM) has been used in conjunction with DSC to study precipitate evolution in aluminium alloy 6061 and 6×××-series aluminium alloys.
Abstract: No detailed calorimetric study of precipitation in 6××× series aluminium alloys has been reported to date. In this study, transmission electron microscopy (TEM) has been utilized in conjunction with DSC to study precipitate evolution in aluminium alloy 6061

340 citations

Network Information
Related Journals (5)
Journal of Materials Science
41.5K papers, 1M citations
90% related
Materials Letters
34.1K papers, 677.6K citations
86% related
Journal of the American Ceramic Society
29.6K papers, 1M citations
84% related
Journal of Non-crystalline Solids
27.8K papers, 670.3K citations
81% related
Performance
Metrics
No. of papers from the Journal in previous years
YearPapers
200524
20043
2003473
2002493
2001607
2000594