1-20 of 189 Search Results for

silica

Sort by
Image
Published: 01 August 2013
Fig. 8.2 Silica glass is composed of tetrahedra with four O −2 ions (shown by open circles) surrounding Si+ 4 ions. Each O −2 ion is shared by two tetrahedra. Source: Ref 8.2 More
Image
Published: 30 April 2021
Fig. 6.6 Resistance of some copper alloys to three-body abrasion by 60 mesh silica sand in a test like ASTM G65 (30 lb force, neoprene wheel) More
Image
Published: 30 April 2021
Fig. 10.13 Wear of candidate materials after an 8 h silica tape abrasion test (in accordance with ASTM International G174) More
Image
Published: 01 December 2003
Fig. 32 Thermogravimetric analysis of silica- and carbon-filled PTFE; 10 mg (0.15 gr) at 5 °C/min (9 °F/min). Source: Ref 23 More
Image
Published: 01 August 2018
Fig. 11.26 (a) Longitudinal cross section of a wire rod presenting an elongated silicate inclusion. Hot working was concluded at 900 °C (1650 °F). Not etched. SEM, BE. (b) EDS x-ray spectrum of the inclusion presented in (a). More
Image
Published: 01 August 2018
Fig. 11.27 (a) Longitudinal cross section of a wire rod presenting an elongated silicate inclusion. Hot working was concluded at 1000 °C (1830 °F). Not etched. SEM, BE. (b) EDS x-ray spectrum of the inclusion presented in (a). More
Image
Published: 01 December 2003
Fig. 14 Thermogravimetric analysis of silica and carbon-filled polytetrafluoroethylene (PTFE); 10 mg (0.15 gr) at 5 °C/min (9 °F/min). Source: Ref 55 More
Image
Published: 01 January 2017
Fig. 14.2 Crack velocity as a function of pH for soda-lime-silica glass (left) and vitreous silica (right). Note that slopes in high pH are similar to that in water. After Ref 14.10 More
Image
Published: 01 January 2017
Fig. 14.3 Crack velocity as a function of K I for vitreous silica in 1 N KOH (○) and 1 N LiOH (●) (top) and 1 N LiOH (○) and water (●) (bottom). After Ref 14.11 More
Image
Published: 01 March 2002
Fig. 15.7 Effect of amorphous silica in protecting IN-939 nickel-base superalloy during oxidation at 899 °C (1650 °F) for 1000 h More
Image
Published: 30 April 2020
Fig. 2.19 Transmission electron micrograph of nanoscale silica (SiO 2 ) particles that bonded into chainlike structures during synthesis More
Image
Published: 01 December 1995
Fig. 14-7 Chromium and silicon contents of liquid iron in equilibrium with silica-saturated slags More
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2019
DOI: 10.31399/asm.tb.mfadr7.t91110391
EISBN: 978-1-62708-247-1
... in faster removal rates. Also, very small samples tend to get lost in the potting mold or float in the uncured epoxy. Polishing Cloths Polishing cloths hold the polishing media, either diamond suspensions/pastes or slurries such as alumina or colloidal silica (co-silica). Cloths are either woven...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2013
DOI: 10.31399/asm.tb.ems.t53730081
EISBN: 978-1-62708-283-9
.... Oxidation at high temperatures is not a problem with refractory oxides as it is with refractory metals. Magnesia, alumina, and silica are used as refractories. (Oxides are named by substituting “a” for “ium” or “um” at the end of a metal’s name. Thus, alumina is aluminum oxide, and soda is sodium oxide...
Image
Published: 01 November 2019
Figure 15 Moduli of reflectance and transmission vs. the angle of incidence at a fluid - solid interface. Fluid: water @ 21°C. Solid: fused silica. More
Image
Published: 01 September 2005
Fig. 32 Jern Konntoret (JK) chart for determining the inclusion in steel. (a) Sulfide-type inclusion. (b) Alumina-type inclusion. (c) Silica-type inclusion. (d) Globular-type inclusion More
Image
Published: 01 December 2001
Fig. 32 Microstructure of type A390.0 hypereutectic alloy. (a) Unrefined (Graff-Sargent etch). Dark regions contain coarse primary silicon particles in addition to eutectic silica. (b) Refined (as polished). 120x More
Image
Published: 30 April 2021
Fig. 12.6 Two-body abrasion wear rates of various roller surfaces subjected to abrasion by silica-coated tape, where * indicates not age hardened. PVD, physical vapor deposition; TS, thermal spray More
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2018
DOI: 10.31399/asm.tb.fibtca.t52430379
EISBN: 978-1-62708-253-2
... for contamination of iron. Metallic iron remains in particle form because it does not dissolve in water. Iron particles account for erosion-related problems. 7.2.4 Silica Silica is usually not present in very large quantities in water. However, even in small concentrations, it can form a hard scale. Silica...
Image
Published: 30 April 2021
Fig. 5.16 Abrasion wear scars at a magnification of 15×. (a) Two-body abrasion from 30 μm alumina in ASTM G174 abrasion test. (b) Three-body abrasion from 60 mesh silica in ASTM G65 abrasion test More