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(PDF) Fracture Energy and Fracture Toughness of In Situ

Download full-text PDF Read full-text. Whereas the in situ spinel (MgAl2O4) formation provides an enhanced corrosion and thermal-shock resistance to the castable the composition with pre

sintered clay ceramics Topics by Science.gov

May 01 2018 · Method of sintering ceramic materials. DOEpatents. Holcombe Cressie E. Dykes Norman L. . A method for sintering ceramic materials is described. A ceramic article is coated with layers of protective coatings such as boron nitride graphite foil and niobium. The coated ceramic article is embedded in a container containing refractory metal oxide granules and placed within a

Self flowing refractory castables study of the hydraulic

Refractories are enabling materials in that their primary function is to facilitate the production of other materials such as metals glasses petrochemicals and cements. They have enabled the utilization of heat to make materials since the Bronze Age. Although in recent years a number of studies concerning the many complex variables that determine the rheologic hydraulic and ceramic

(PDF) Effects of particle size distribution on the

Download full-text PDF Aim of this study is to develop and design a cement free castable refractory material having high slag corrosion. In situ spinel formation in samples led to the

sintered clay ceramics Topics by Science.gov

May 01 2018 · Method of sintering ceramic materials. DOEpatents. Holcombe Cressie E. Dykes Norman L. . A method for sintering ceramic materials is described. A ceramic article is coated with layers of protective coatings such as boron nitride graphite foil and niobium. The coated ceramic article is embedded in a container containing refractory metal oxide granules and placed within a

(PDF) Effects of particle size distribution on the

Download full-text PDF Aim of this study is to develop and design a cement free castable refractory material having high slag corrosion. In situ spinel formation in samples led to the

(PDF) Effects of particle size distribution on the

Download full-text PDF Aim of this study is to develop and design a cement free castable refractory material having high slag corrosion. In situ spinel formation in samples led to the

sintered clay ceramics Topics by Science.gov

May 01 2018 · Method of sintering ceramic materials. DOEpatents. Holcombe Cressie E. Dykes Norman L. . A method for sintering ceramic materials is described. A ceramic article is coated with layers of protective coatings such as boron nitride graphite foil and niobium. The coated ceramic article is embedded in a container containing refractory metal oxide granules and placed within a

(PDF) Fracture Energy and Fracture Toughness of In Situ

Download full-text PDF Read full-text. Whereas the in situ spinel (MgAl2O4) formation provides an enhanced corrosion and thermal-shock resistance to the castable the composition with pre

(PDF) Fracture Energy and Fracture Toughness of In Situ

Download full-text PDF Read full-text. Whereas the in situ spinel (MgAl2O4) formation provides an enhanced corrosion and thermal-shock resistance to the castable the composition with pre

Evolution of in Situ Refractories in the 20th Century

Jan 21 2005 · The history of refractories during the 20th century is used in this review to illustrate how techniques‐such as slag splashing in situ spinel generation in castables magnesia dense layer formation in magnesia‐carbon brick in steelmaking clinker adhesion in cement kilns and viscous boundary layer generation in glass tanks‐have evolved

Synthesis and sintering of chromium-free complex spinels

Magnesia-chrome refractory ceramics are used in non-ferrous industry because of their corrosion resistance against fayalite-type slags rich in FeO. Unfortunately Cr³⁺ may oxidize to Cr⁶⁺ during the smelting and converting processes thus making their spent pot-lining hazardous. Two strategies are explored in this present work to develop chrome-free refractories sinterable at lower

Synthesis and sintering of chromium-free complex spinels

Magnesia-chrome refractory ceramics are used in non-ferrous industry because of their corrosion resistance against fayalite-type slags rich in FeO. Unfortunately Cr³⁺ may oxidize to Cr⁶⁺ during the smelting and converting processes thus making their spent pot-lining hazardous. Two strategies are explored in this present work to develop chrome-free refractories sinterable at lower

Self flowing refractory castables study of the hydraulic

Refractories are enabling materials in that their primary function is to facilitate the production of other materials such as metals glasses petrochemicals and cements. They have enabled the utilization of heat to make materials since the Bronze Age. Although in recent years a number of studies concerning the many complex variables that determine the rheologic hydraulic and ceramic

Synthesis and sintering of chromium-free complex spinels

Magnesia-chrome refractory ceramics are used in non-ferrous industry because of their corrosion resistance against fayalite-type slags rich in FeO. Unfortunately Cr³⁺ may oxidize to Cr⁶⁺ during the smelting and converting processes thus making their spent pot-lining hazardous. Two strategies are explored in this present work to develop chrome-free refractories sinterable at lower

Formation and evolution of Spinel in aluminum killed

harmful liquid inclusions. Unfortunately spinel inclusions are still sometimes observed in samples taken from the tundish and coil after calcium treatment. The formation and evolution of spinel inclusions during liquid steel processing at two industrial mini mills was investigated by analysis of lollipop samples taken at

The influence of in situ spinel formation on

Jan 01 2008 · The influence of in situ spinel formation on microstructure and strength of MgO–C refractories containing reactive alumina is investigated as a function of coking temperature. XRD SEM MOR techniques and rotary slag testing were employed to evaluate the microstructure and properties. The improvement of refractory properties was found to be related to the in situ spinel formation in

sintered clay ceramics Topics by Science.gov

May 01 2018 · Method of sintering ceramic materials. DOEpatents. Holcombe Cressie E. Dykes Norman L. . A method for sintering ceramic materials is described. A ceramic article is coated with layers of protective coatings such as boron nitride graphite foil and niobium. The coated ceramic article is embedded in a container containing refractory metal oxide granules and placed within a

SPINEL CRYSTAL STRUCTUREINVERSE SPINELSEXAMPLESTYPES

Influence of Mechanical Activation on the Synthesis and

Request full-text PDF. formation and that subsequent conversion is only possible in presence of free water. air at 900°C led to the formation of well-crystalline Ni Al2O4 spinel alone

(PDF) Corrosion of Glass Contact Refractories for the

Jan 1977. Klaus Schulte. Several types of refractories that may be used for bottom paving have been used in 300 h crucible tests to measure the rate of accelerated bottom corrosion by metals with

Self flowing refractory castables study of the hydraulic

Refractories are enabling materials in that their primary function is to facilitate the production of other materials such as metals glasses petrochemicals and cements. They have enabled the utilization of heat to make materials since the Bronze Age. Although in recent years a number of studies concerning the many complex variables that determine the rheologic hydraulic and ceramic

(PDF) Fracture Energy and Fracture Toughness of In Situ

Download full-text PDF Read full-text. Whereas the in situ spinel (MgAl2O4) formation provides an enhanced corrosion and thermal-shock resistance to the castable the composition with pre

(PDF) Corrosion of Glass Contact Refractories for the

Jan 1977. Klaus Schulte. Several types of refractories that may be used for bottom paving have been used in 300 h crucible tests to measure the rate of accelerated bottom corrosion by metals with

(PDF) Fracture Energy and Fracture Toughness of In Situ

Download full-text PDF Read full-text. Whereas the in situ spinel (MgAl2O4) formation provides an enhanced corrosion and thermal-shock resistance to the castable the composition with pre

The Impact of In Situ-Formed Spinel on the Porosity of No

The paper focuses on the determination of how in-situ formed magnesia-alumina spinel (MA spinel) content in corundum refractory castables influences the final properties and pore size distribution of no-cement refractory castables. The motivation for this research was the continued pressure on increasing the utility properties of refractory castables namely their corrosion resistance to blast

(PDF) Corrosion of Glass Contact Refractories for the

Jan 1977. Klaus Schulte. Several types of refractories that may be used for bottom paving have been used in 300 h crucible tests to measure the rate of accelerated bottom corrosion by metals with

(PDF) Effects of particle size distribution on the

Download full-text PDF Aim of this study is to develop and design a cement free castable refractory material having high slag corrosion. In situ spinel formation in samples led to the

Reactive processing of ceramic binding systems for

The general applied objective of this project is to develop hydratable alumina-bonded castables of properties comparable to the high-temperature fired basic bricks. This work is focused on improving the sintering of the ceramic binding systems at relatively low temperatures ( 1300°C) through incorporation of ultrafine powders. Ultrafine magnesium aluminate spinel powders were synthesized

Spinel In situ versus PreformedClearing the Myth

† spinel containing plus spinel forming no cement castable (SP-SF NCC). Castable SP (Spinel containing) was formu-lated with an addition of 25 pre-reacted spinel type AR 78 in the matrix (<0 5 mm). The spinel forming castable contains 5 dead burnt magnesia ≤90 µm thus leading to a theoretical spinel formation of 22 . In practical