Results 81 to 90 of about 121,256 (303)

Pyramidal Structures on Yttria‐Stabilized Zirconia after High Temperature Exposure at 1500°C: New Features on an Old Material

Advanced Engineering Materials, EarlyView.
New features on yttria‐stabilized zirconia after exposure at 1500°C: Newly discovered pyramidal structures on an old material. After exposure at 1550°C on the cross section of YSZ new features, namely pyramidal structures are discovered. These structures grow with time, increase in numbers, appear as singularities, are often arranged in strings, and ...
Doris Sebold, Dylan Jennings, Robert Vaßen   +2 more
wiley   +1 more source

Human Dental Microwear From Ohalo II (22,500–23,500 cal BP), Southern Levant [PDF]

, 2007
Dietary hardness and abrasiveness are inferred from human dental microwear at Ohalo II, a late Upper Palaeolithic site (22,500–23,500 cal BP) in the southern Levant.
Agelarakis, Baker, Bar Yosef, Bar Yosef, Bar Yosef, Bar Yosef, Bar Yosef, Baruch, Carmi, Cook, Covert, Daegling, Dewdney, Every, Frankel, Gal, Gal, Garfinkel, Garfinkel, Goldberg, Goldberg, Golden, Gonen, Gopher, Gordon, Gordon, Goring-Morris, Grigson, Grine, Henry, Hershkovitz, Hershkovitz, Hershkovitz, Hershkovitz, Hillman, Hillman, Hillman, Hopf, Hopf, Horwitz, Kahila, Karmon, King, Kislev, Kislev, Kislev, Kislev, Lalueza, Lechevallier, Lev-Tov, Levy, Lucas, Mahoney, Mahoney, Mahoney, Mahoney, Maier, Martin, Molleson, Molleson, Nadar, Nadel, Nadel, Nadel, Nadel, Nadel, Nadel, Nadel, Nadel, Nadel, Noy, Noy, Noy, Noy, Nystrom, Organ, Pastor, Pe'rez-Pe'rez, Perrot, Perrot, Piperno, Piperno, Pough, Puech, Rabinovich, Rensberger, Rensberger, Ronen, Ryan, Schmidt, Shalev, Simmons, Smith, Steckelis, Tabachnick, Teaford, Teaford, Teaford, Teaford, Teaford, Teaford, Teaford, Teaford, Tsatskin, Ungar, Ungar, Ungar, Ungar, Ungar, Valla, Van Valkenburgh, Van Zeist, Waddle, Walker, Weiss, Weiss, Willcox, Willcox, Wright, Zagerson, Zar, Zohar, Zohary, Zohary   +123 more
core   +1 more source

Interaction of Ladle Slag With Varying SiO2 Content and Recyclate‐Based MgO–C Refractories

Advanced Engineering Materials, EarlyView.
Ladle slags (CaO/Al2O3 = 1) with 1–20 wt% SiO2 were investigated in contact with industrial MgO–C refractories fabricated from fresh magnesia and 50 wt% recyclate. The sessile drop method at 1600°C reveals intensive gas formation, delayed slag infiltration in recyclate‐based samples, and, under high‐SiO2 slag, formation of a dense MgAl2O4‐rich ...
Anton Yehorov, Eldar Salpagarov, Anhelina Mospan, Till Manon Jannis Stadtmüller, Thomas Schemmel, Christos Georgios Aneziris, Olena Volkova   +6 more
wiley   +1 more source

Gemstone Grinding Process Improvement by using Impedance Force Control

MATEC Web of Conferences, 2015
Chula Automatic Faceting Machine has been developed by The Advance Manufacturing Research Lab, Chulalongkorn University to support Thailand Gems-Industry. The machine has high precision motion control by using position and force control.
Hamprommarat Chumpol, Sutapun Anan, Sangveraphunsiri Viboon   +2 more
doaj   +1 more source

Radial Stiffness of Combined Journal and Thrust Hydrostatic Bearing. [PDF]

, 2016
The paper presents the results of theoretical analysis of the effect of supply pressure and rotational speed on the radial stiffness of the integrated angular cylindrical–face hydrostatic bearings designed for precise technological devices.
Sikora, Małgorzata
core  

Plasma sprayed titanium coatings with/without a shroud [PDF]

, 2020
: Titanium coatings were deposited by plasma spraying with and without a shroud. The titanium coatings were then assessed by scanning electron microscopy.
Zhou, Hong
core  

A novel eccentric lapping machine for finishing advanced ceramic balls [PDF]

, 2001
Advanced ceramic balls are used extensively in hybrid precision ball bearings and show advantages in high speed, high temperature, high load and hostile environment.
Hadfield, M, Kang, J
core   +1 more source

Additive Manufacturing of Continuous Fibre Reinforced Composites: Process, Characterisation, Modelling, and Sustainability

Advanced Engineering Materials, EarlyView.
Additive manufacturing provides precise control over the placement of continuous fibres within polymer matrices, enabling customised mechanical performance in composite components. This article explores processing strategies, mechanical testing, and modelling approaches for additive manufactured continuous fibre‐reinforced composites.
Cherian Thomas, Amir Hosein Sakhaei
wiley   +1 more source

Research on Grinding Force Prediction of Flexible Abrasive Disc Grinding Process of TC17 Titanium Alloy

Machines
Abrasive disc grinding is currently a key manufacturing process to achieve better accuracy and high-quality surfaces of TC17 components. Grinding force, which results from the friction and elastic–plastic deformation during the contact and interaction ...
Jihao Duan, Zhuofan Wu, Jianbo Ren, Gaochen Zhang   +3 more
doaj   +1 more source

Rapid Modelling and Grinding of Workpieces’ Inner-surface by Robot with Impedance Model Based Fuzzy Force Control Algorithm

MATEC Web of Conferences, 2017
To achieve rapid automatic grinding of workpieces’ inner-surface by industrial robot, a rapid translational detection strategy of workpieces’ inner-surface and fuzzy force control algorithm of grinding are proposed in this paper.
Wang Fei, Luo Zhong, Liu Hongyi
doaj   +1 more source