搜索结果: 1-15 共查到“材料科学 precipitation”相关记录18条 . 查询时间(0.079 秒)
Synthesis of monodisperse spherical core-shell SiO2-SrAl2Si2 O8:Eu2+ phosphors by hydrothermal homogeneous precipitation method
Synthesis monodisperse spherical
2010/10/12
Nanocrystalline SrAl2Si2 O8 :Eu2+ phosphor layers were coated on nonaggregated, monodisperse and spherical SiO2 particles using a hydrothermal homogeneous precipitation. After annealing at 1100 °C, co...
Synthesis of Y2O2S:Eu3+, Mg2+, Ti4+ hollow microspheres via homogeneous precipitation route
Synthesis of Y2O2S Eu3+ Mg2+ Ti4+ hollow microspheres via homogeneous precipitation route
2010/10/12
A phosphorescent material in the form of Y2O2S:Eu3+, Mg2+, Ti4+ hollow microspheres was prepared by homogeneous precipitation using monodispersed carbon spheres as hard templates. Y2O3:Eu3+ hollow mic...
The high alloy precipitation hardening martensitic steels and their suitability for welding
Metallic alloys Welding metallurgy Martensitic steels Heat treatment
2010/8/17
High alloy martensitic steels studied in the present work, have well over 20% of the alloying elements and belongs to the two broad categories, the high-nickel maraging steels and the chromium-nickel ...
The Mössbauer spectroscopy studies of hypereutectoid cementite precipitation
Mö ssbauer spectroscopy CEMS steel hypereutectoid cementite
2009/12/2
Purpose: of this paper: This work complements the knowledge concerning the hypereutectoid cementite
precipitation. Investigations were performed on 120MnCrMoV8-6-4-2 steel, which was designed in 1998...
Thermal stability of functional properties in dispersion and precipitation hardened selected copper alloys
Nanomaterials Functional materials Metallography
2009/12/2
Purpose: The objective of the study was to produce copper-based dispersion hardened materials of submicron
grain size, determination of their basic functional properties and stability in high tempera...
Structure and precipitation strengthening in a high-temperature Fe–Ni alloy
Metallic alloys Heat treatment Structure
2009/12/1
Purpose: The relationships between the kinetics of precipitation and growth of the intermetallic phase
γ’ [Ni3(Al,Ti)] and the strengthening magnitude obtained in a high-temperature Fe–Ni alloy of th...
Effect of Ultrasound Frequency on the Precipitation Process of Supersaturated Sodium Aluminate Solution
ultrasound,sodium aluminate solution,particle size distribution,nucleation
2009/11/16
The effects of frequency of ultrasound on the precipitation process of prepared supersaturated sodium aluminate solutions of practical concentration were studied experimentally under seeded, isotherma...
Energy of precipitation of Al2Cu and α-AlFeSi phase from the AlCu3 alloy and the shape of precipitates
Al-alloys thermodynamics thermal analysis
2009/10/23
AlCu3 alloy was examined with the triple simple thermal analysis (TETA), the simultaneous thermal analysis (STA), the computer simulation using Thermo-Calc program and with the metallographic analyses...
Precipitation Hardening and Ordering of Carat Gold Jewellery Alloys
Precipitation Hardening Gold Jewellery
2009/7/30
Precipitation Hardening and Ordering of Carat Gold Jewellery Alloys.
Influence of graphite precipitation shape and number on tensile strength of spheroidal cast iron manufactured in the foundry METAL-ODLEW Sp.J
Spheroidal cast iron Mechanical properties Microstructure
2011/4/1
The study assesses influence of graphite precipitation shape and number on tensile strength of spheroidal cast iron manufactured under production conditions.
Assessment of the influence of magnesium content on the shape and amount of graphite precipitation in spheroidal cast iron manufactured by Metal-Odlew s.c.
spheroidal cast iron decay of spheroidisation effect shape and number of graphite precipitations
2011/3/29
The study presents the influence of time on cast iron spheroidisation, modification of the magnesium content in the alloy, and the influence of the magnesium content on the shape and number of graphit...
Assessment of the influence of magnesium content on the shape and amount of graphite precipitation in spheroidal cast iron manufactured by Metal-Odlew s.c.
spheroidal cast iron decay of spheroidisation effect shape and number of graphite precipitations
2011/3/29
The study presents the influence of time on cast iron spheroidisation, modification of the magnesium content in the alloy, and the influence of the magnesium content on the shape and number of graphit...
Precipitation of carbides in Cr-Mo-V cast steel after service and regenerative heat treatment
Metallographic Heat Treatment Cast Steel Carbides
2011/3/29
The paper presents results of research on precipitation processes in chromium – molybdenum – vanadium cast steel. The examined material was the following cast steel grade: L21HMF and G17CrMoV5 – 10 (...
Precipitation of carbides in Cr-Mo-V cast steel after service and regenerative heat treatment
Metallographic Heat Treatment Cast Steel Carbides
2011/3/29
The paper presents results of research on precipitation processes in chromium – molybdenum – vanadium cast steel. The examined material was the following cast steel grade: L21HMF and G17CrMoV5 – 10 (...
Analysis of the precipitation and growth processes in a high-temperature Fe–Ni alloy
Metallic alloys Heat treatment Precipitation and coagulation
2010/1/19
Purpose: The influence of prolonged aging on the precipitation process of the intermetallic phases, carbide
and boride in high-temperature Fe–Ni austenitic alloy has been studied. Taking advantage of...