Results 21 to 30 of about 9,387 (213)

Dilatometry of ball milled nickel nano powder during non-isothermal sintering [PDF]

open access: yesScience of Sintering, 2007
This work attempts to evaluate the sintering mechanisms of ball milled nanocrystalline nickel during nonisothermal heating. Samples showed a sintered density of 91.2% (theoretical) and grain growth up to 414 nm at 1273K.
Panigrahi B.B., Das K., Godkhindi M.M.
doaj   +1 more source

Strain Analysis of Initial Stage Sintering of 316L SS Three Dimensionally Printed (3DP TM) Components [PDF]

open access: yes, 2004
Mechanical ...
Anderson, Rhonda   +3 more
core   +1 more source

Development Of High-Resolution Mechanical Spectroscopy, HRMS: Status And Perspectives. HRMS Coupled With A Laser Dilatometer

open access: yesArchives of Metallurgy and Materials, 2015
Recent achievements in the development of low-frequency high-resolution mechanical spectroscopy (HRMS) are briefly reported. It is demonstrated that extremely low values of the loss angle, ϕ, (tanϕb = 1×10−5) can be measured as a function of frequency ...
Magalas L.B.
doaj   +1 more source

The influence of a cooling rate on the evolution of microstructure and hardness of the steel 27MnCrB5 [PDF]

open access: yes, 2018
The aim of the performed experiments was to determine the influence of a cooling rate on the evolution of microstructure and hardness of the steel 27MnCrB5.
Kawulok, Petr   +7 more
core   +1 more source

Understanding the negative thermal expansion in planar graphite–metal composites [PDF]

open access: yes, 2018
The addition of graphitic fibers and flakes as fillers is commonly used to control the thermal expansion of metals. Sintered metal matrix composites with a planar distribution of graphite flakes show a low or negative thermal expansion coefficient ...
Oddone, Valerio   +2 more
core   +1 more source

Reheating of zinc-titanate sintered specimens [PDF]

open access: yesScience of Sintering, 2015
The scope of this work was observing dimensional and heat transfer changes in ZnTiO3 samples during heating in nitrogen and air atmosphere. Interactions of bulk specimens with gaseous surrounding induce microstructure changes during heating ...
Labus N.   +5 more
doaj   +1 more source

Mechanism of reduced sintering temperature of Al2O3–ZrO2 nanocomposites obtained by microwave hydrothermal synthesis [PDF]

open access: yes, 2018
A novel method to obtain Al2O3–ZrO2 nanocomposites is presented. It consists of the co-precipitation step of boehmite (AlO(OH)) and ZrO2, followed by microwave hydrothermal treatment at 270 °C and 60 MPa, and by calcination at 600 °C.
Ganin, Alexey   +7 more
core   +1 more source

The Influence of Silica Sand Granulometry and Sorting Level on Thermal Expansion [PDF]

open access: yesArchives of Foundry Engineering, 2023
The quality of the castings depends, among other influences, on the quality of the moulding mixture used. The silica sands used are characterized by high thermal expansion compared to other sands. The tendency to dilatation of the moulding mixture can be
M. Bašistová, P. Lichý
doaj   +1 more source

Characterisation of Mn0.63Zn0.37Fe2O4 powders after intensive milling and subsequent thermal treatment [PDF]

open access: yesScience of Sintering, 2017
Commercial Mn-Zn powder (Mn0.63Zn0.37Fe2O4, 93 wt. % and Fe2O3 7 wt. %) was milled 0.5, 1, 2 and 4 hours in a planetary ball mill. The goal was to observe intensive milling influences on oxidation and reduction processes that will happen during ...
Labus Nebojša   +7 more
doaj   +1 more source

Influence of Austenitisation Temperature and Time on Martensitic and Isothermal Bainite Phase Transformation of Spring Steel

open access: yesMetals, 2022
The influence of austenitisation temperature and time on the martensitic and isothermal bainite transformation of 51CrV4 spring steel was analysed. Based on the analysis of dilatometric curves, the martensite start temperatures (MS) were determined at ...
Anže Bajželj, Jaka Burja
doaj   +1 more source

Home - About - Disclaimer - Privacy