Publisher's Note: “Exploring the significance of structural hierarchy in material systems—A review” [Appl. Phys. Rev. 1, 021302 (2014)]

The received model of evolution sees all inherited features resulting from deterministic networks of interacting genes, implying that living systems are reducible to information in genetic programs. The model requires these programs and their associated phenotypes to have evolved by an isotropic search process occurring in gradual steps with no preferred morphological outcomes. The alternative is to recognize that clusters and aggregates of cells, the raw material of evolution, constitute middle-scale material systems. This implies the necessity of bringing the modern physics of mesoscale matter into the explanatory framework for the evolution of development. The relevant, often nonlinear, physical processes were mobilized at the inception of the phyla when their signature morphological outcomes first appeared and remain as efficient causes, albeit transformed, in present-day embryos. This physicogenetic perspective reengages with concepts of saltation, orthogenesis, and environment-induced plasticity long excluded from evolutionary theory.

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Intelligent Material Systems Using Epoxy Particles to Repair Microcracks and Delamination Damage in GFRP

Journal of Intelligent Material Systems and Structures ◽

10.1106/ye1h-qudh-fc7w-4qfm ◽

1999 ◽

Vol 10 (10) ◽

pp. 836-841 ◽

Cited By ~ 7

Author(s):

M. ZAKO ◽

N. TAKANO

Keyword(s):

Material Systems ◽

Intelligent Material ◽

Delamination Damage

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Superior Oxidation Resistance Titanium Alloy ARCONIC-THORTM for Aerospace Applications

MATEC Web of Conferences ◽

10.1051/matecconf/202032104013 ◽

2020 ◽

Vol 321 ◽

pp. 04013

Author(s):

Sesh Tamirisakandala ◽

Ernie Crist ◽

Fusheng Sun ◽

Matthew Dahar

Keyword(s):

Titanium Alloy ◽

High Temperature ◽

Oxidation Resistance ◽

Cost Savings ◽

Jet Engines ◽

Aerospace Applications ◽

Technology Advancement ◽

Aerospace Systems ◽

Material Systems ◽

Nickel Base

Next generation fuel-efficient jet engines are running hotter presenting a structural challenge for the exhaust systems and structures adjacent to the engines. A conventional and affordable titanium alloy with superior oxidation resistance provides significant weight reductions and associated cost savings by eliminating the need for high density material systems such as nickel-base superalloys for service temperatures in between current titanium and nickel, enabling major technology advancement in high temperature aerospace applications. This paper presents an overview of Arconic’s engineered material ARCONIC-THORTM to address the needs of future aerospace systems.

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