Results 11 to 20 of about 22,115 (266)

Effect of Hollow Body Material on Mechanical Properties of Bubble Concrete

Crystals, 2022
The bubble concrete (BC) produced by mixing high-strength hollow bodies into concrete has been proven to be effective in reducing density while maintaining strength.
Xiangdong Yan, Pei-Shan Chen, Baoxin Liu, Bashar S. Mohammed, Jialiang Jin   +4 more
doaj   +1 more source

Preparation and evaluation of gypsum plaster composited with copper smelter slag

Cleaner Engineering and Technology, 2021
Copper smelter slag is a by-product of copper production at smelters. In this paper, the slag was combined with gypsum, and the physical properties and functionalities of the resulting composites were evaluated to explore new uses for copper smelter slag.
Masahide Hagiri, Kazufumi Honda
doaj   +1 more source

Comparison of Different Aerogel Granules for Use as Aggregate in Concrete

Gels, 2023
In previous work of this group, a structural lightweight concrete was developed by embedding silica aerogel granules in a high-strength cement matrix.
Torsten Welsch, Yannick Vievers, Martina Schnellenbach-Held, Danny Bialuschewski, Barbara Milow   +4 more
doaj   +1 more source

Characterization of cement composites based on recycled cellulosic waste paper fibres

Open Engineering, 2018
Nowadays, there is paying an attention to the utilization of natural, renewable and biodegradable resources of raw materials of lignocellulosic character, residues from agricultural crops and wood processing as well as waste from papermaking industry in ...
Stevulova Nadezda, Hospodarova Viola, Vaclavik Vojtech, Dvorsky Tomas, Danek Tomas   +4 more
doaj   +1 more source

Influence of laser hardening modes on the properties of 40X13 steel

Весці Нацыянальнай акадэміі навук Беларусі: Серыя фізіка-тэхнічных навук, 2023
We have studied the dependence of the characteristics, strength and plasticity, as well as the microhardness of specimens made of corrosion-resistant steel 40X13 on the modes of laser surface hardening by a fiber laser.
O. M. Mishchiruk, A. I. Verameichyk, O. G. Devoino, M. V. Neroda, B. G. Kholodar   +4 more
doaj   +1 more source

B-Scan Imaging and 3D Visualization of Hardened Layer Depth Profile in Linear Guide Rails Based on Ultrasonic Shear Wave Backscattering Technique

Acoustics
In order to measure the depth profile of the heat-treated case-hardened layer of linear guides, this paper proposes a B-scan imaging and 3D visualization method for detecting the depth profile of the case-hardened layer of linear guides based on the ...
Peiqiang Chen, Lingtong Chen, Mingyang Xue, Chenlong Yang   +3 more
doaj   +1 more source

Process Parameters Analysis of Laser Phase Transformation Hardening on the Raceway Surface of Shield Main Bearing

Photonics, 2023
The main bearing of the shield machine has a huge structure and severe service conditions, which are prone to wear and fatigue damage. To improve the anti-wear and anti-fatigue ability of the raceway surface of the shield main bearing, laser ...
Peiyu He, Yi Ding, Shiying Jiang, Hengjie Zhang, Tianyu Shen, Yun Wang   +5 more
doaj   +1 more source

Geometrical shape improvement of steel moulds by robot polishing process for polymer optic replication

Production and Manufacturing Research: An Open Access Journal, 2018
The quality of injection-moulded polymer optic parts depends on the surface finish of the respective mould. In order to improve the surface finish of the mould, it is important to use a tactical material removal, which allows a controlled correction of ...
Rui Almeida, Rainer Börret, Mario Pohl, David K. Harrison, Anjali K. M. De Silva   +4 more
doaj   +1 more source

Theoretical Studies of Laws Nanostructuring and Heterogeneous Hardening of Steel Samples by Wave Intensive Plastic Deformation [PDF]

Журнал нано- та електронної фізики, 2015
Theoretical studies and calculations, allowing to define the required parameters of the wave deformation hardening, are performed in order to obtain heterogeneous hardened surface layer in steel samples.
A.V. Kirichek, A.Y. Altukhov, D.L. Solovyov, S.A. Silantiev   +3 more
doaj  

A Comparative Study on Cutting Tool Performance in High-Speed Face-Milling of Hardened Tool Steels [PDF]

Archives of Metallurgy and Materials
In this study cutting speeds and tool life constants for seven different cutting tools are investigated while high-speed face milling of four different much used hardened tool steels.1.2379 and 1.2080 cold-work tool steels, 1.2344 hot-work tool steel and
Ali O. Er, E. Aslan
doaj   +1 more source