Tribological Properties of (EN AW-AlCu4MgSi(A)) Aluminium Alloy Surface Layer After Ball Burnishing (open access)

Tribological Properties of (EN AW-AlCu4MgSi(A)) Aluminium Alloy Surface Layer After Ball Burnishing

Article presents the tribological properties of (EN AW-AlCu4MgSi(A)) aluminium alloy surface layer after ball burnishing. EN AW-AlCu4MgSi(A) aluminium alloy is widely used as a structural material in aerospace and automotive applications. The authors have subjected it to grinding, polishing and ball burnishing. The authors have performed ball-on-disk tribological tests. We have also determined normalized 3D roughness parameters. High surface smoothness turns out to be obtainable. Favorable effect of the ball burnishing on the tribological properties of the alloy are seen. Results will be presented at the International Scientific Conference BALTTRIB, 2015.
Date: 2015
Creator: Brostow, Witold, 1934-; Cygan, S.; Czechowski, K.; Kalisz, J.; Laszkiewicz-Łukasik, J. & Łętocha, A.
Object Type: Article
System: The UNT Digital Library
A new combinatorial approach to assess the influence of alloy composition on the oxidation behavior and concurrent oxygen-induced phase transformations for binary Ti–xCr alloys at 650 °C (open access)

A new combinatorial approach to assess the influence of alloy composition on the oxidation behavior and concurrent oxygen-induced phase transformations for binary Ti–xCr alloys at 650 °C

Article describes an experiment in which a combinatorial approach was used to investigate systematically the influence of composition and time on the oxidation of Ti–Cr system.
Date: May 11, 2015
Creator: Samimi, Peyman; Liu, Yue; Ghamarian, Iman; Brice, David A. & Collins, Peter
Object Type: Article
System: The UNT Digital Library
Carbon-based electrocatalysts for advanced energy conversion and storage (open access)

Carbon-based electrocatalysts for advanced energy conversion and storage

This article presents a critical review on the recent advances in carbon-based metal-free catalysts for fuel cells and metal-air batteries, and discusses the perspectives and challenges in this rapidly developing field of practical significance.
Date: August 28, 2015
Creator: Zhang, Jintao; Xia, Zhenhai & Dai, Liming
Object Type: Review
System: The UNT Digital Library
Rationally designed graphene-nanotube 3D architectures with a seamless nodal junction for efficient energy conversion and storage (open access)

Rationally designed graphene-nanotube 3D architectures with a seamless nodal junction for efficient energy conversion and storage

This article discusses the development of a strategy of creating 3D graphene-carbon nanotube hollow fibers with radially aligned CNTs (RACNTs) seamless sheathed by a cylindrical graphene layer through a one-step chemical vapor deposition using an anodized aluminum wire template.
Date: September 4, 2015
Creator: Xue, Yuhua; Ding, Yong; Niu, Jianbing; Xia, Zhenhai; Roy, Ajit; Chen, Hao et al.
Object Type: Article
System: The UNT Digital Library
Waste Materials from Tetra Pak Packages as Reinforcement of Polymer Concrete (open access)

Waste Materials from Tetra Pak Packages as Reinforcement of Polymer Concrete

This article discusses how compressive and flexural strength and modulus of elasticity decrease gradually, when either Tetra Pak particle concentration or particle size is increased.
Date: September 28, 2015
Creator: Martínez-López, Miguel; Martínez-Barrera, Gonzalo; Barrera-Díaz, Carlos; Ureña-Núñez, Fernando & Brostow, Witold, 1934-
Object Type: Article
System: The UNT Digital Library
Revisiting (Some of) the Lasting Impacts of the Liberty Ships via a Metallurgical Analysis of Rivets from the SS "John W. Brown" (open access)

Revisiting (Some of) the Lasting Impacts of the Liberty Ships via a Metallurgical Analysis of Rivets from the SS "John W. Brown"

This article examines a rivet from the SS "John W. Brown", which was assembled in Baltimore, Maryland, and launched in September 1942. Classical metallurgical analysis of a rivet from the original 1942 vessel is compared with modern rivets used during its restoration.
Date: October 26, 2015
Creator: Harris, M. D.; Grogg, W. J.; Akoma, A.; Hayes, B. J.; Reidy, Richard F.; Imhoff, E. F. et al.
Object Type: Article
System: The UNT Digital Library
Surface Integrity Achieved by Finishing Processes on Sverker 21 and Vanadis 6 Cold Working Tool Steels (open access)

Surface Integrity Achieved by Finishing Processes on Sverker 21 and Vanadis 6 Cold Working Tool Steels

Article discusses the effects of various processes on the surface integrity of Sverker 21 and Vanadis 6 steel surfaces.
Date: November 2015
Creator: Brostow, Witold, 1934-; Czechowski, K.; Kot, M.; Rusek, P. & Toboła, D.
Object Type: Article
System: The UNT Digital Library
Robust self-cleaning and micromanipulation capabilities of gecko spatulae and their bio-mimics (open access)

Robust self-cleaning and micromanipulation capabilities of gecko spatulae and their bio-mimics

This article reports a unique self-cleaning mechanism possessed by the nano-pads of gecko spatulae.
Date: November 20, 2015
Creator: Xu, Quan; Wan, Yiyang; Hu, Travis Shihao; Liu, Tony X.; Tao, Dashui; Niewiarowski, Peter H. et al.
Object Type: Article
System: The UNT Digital Library
Atomic Distribution in Catalytic Amorphus Metals (open access)

Atomic Distribution in Catalytic Amorphus Metals

This article investigates the atomic distribution in catalytically active metallic glass alloys using three-dimensional atom probe microscopy.
Date: November 24, 2015
Creator: Mridha, Sanghita; Jaeger, David L.; Singh Arora, Harpreet; Banerjee, Rajarshi & Mukherjee, Sundeep
Object Type: Article
System: The UNT Digital Library
Physical and Mechanical Properties of Polymer Composites with High Content of Wastes Including Boron (open access)

Physical and Mechanical Properties of Polymer Composites with High Content of Wastes Including Boron

Article describes study examining the physical and mechanical properties of polymer composite with wastes that incorporate boron.
Date: December 4, 2015
Creator: Uygunoglua, Tayfun; Gunes, Ibrahim & Brostow, Witold, 1934-
Object Type: Article
System: The UNT Digital Library