Fig. 1 Contact angles of Al on Al2O3 at various temperatures [1 11] - "Wetting of pure aluminium on graphite, SiC and Al2O3 in aluminium filtration"
The wettability of pure aluminium on filter materials and on inclusions is believed to be an important factor affecting the filtration of aluminium. The contact …
The wettability of molten aluminum-silicon alloys with silicon contents of 0, 6, 10, and 20 mass pct on graphite substrates by changing the placing sequence of aluminum and silicon and the surface tension of those alloys were investigated at 1273 K (1000 °C) using the sessile drop method under vacuum. The results showed that the …
Wetting of pure aluminium on graphite, SiC and Al2O3 in aluminium filtration Abstract
The variations with time of the contact angle formed by molten pure aluminium or Al-Si alloys with single crystalline SiC were measured by the sessile drop method in a vacuum of 10−4 to 10−5 Pa at temperatures ranging from 933 to 1200 K. In the Al/SiC system, a "non-wetting-wetting" transition was observed at a temperature that decreases as time …
Wetting of pure aluminium on graphite, SiC and Al2O3 in aluminium filtration. Merete Tangstad. 2012, Transactions of Nonferrous Metals Society of China ...
Wetting of pure aluminium on graphite, SiC and Al2O3 in aluminium filtration BAO Sarina 1, TANG Kai 2, Anne KVITHYLD, Thorvald ENGH 1, Merete TANGSTAD 1.
Wetting of pure aluminium on graphite, SiC and Al2O3 in aluminium filtration Abstract
The wettability of pure aluminium on filter materials and on inclusions is believed to be an important factor affecting the filtration of aluminium. The contact angles of molten aluminium on alumina, SiC and graphite were measured under 10−8 bar high vacuum in the temperature range of 1000–1300 °C. To describe the wetting behaviour …
Downloadable (with restrictions)! In this study,Sn-Ag-Titernary alloy has been used as the active solder to braze pure aluminum and graphite in atmospheric conditions using ultrasonic vibration as an aid. The authors studied the formation, composition and decomposition temperature of the surface oxides of the active solder under atmospheric …
The wetting of carbon/TiB 2 composite materials by aluminum. Author links open overlay panel ... A sessile drop technique combined with X-ray radiography was used to measure the contact angle formed between aluminium and pure hot-pressed TiB 2, carbon/TiB 2 composite, graphite and a carbonaceous cement in cryolite-alumina melts. …
The wettability of pure aluminium on filter materials and on inclusions is believed to be an important factor affecting the filtration of aluminium. The contact …
The wetting and spreading of the aluminum melt on the graphite surface under ultrasonic field are simulated. Abstract In the preparation of an Al-Ti-C grain refiner under an ultrasonic field, the mechanism of the wetting behaviour between Al and C was systematically investigated.
The wettability of pure aluminium on filter materials is believed to be an important factor affecting the filtration of aluminium. The contact angle of molten aluminium on graphite, alumina and AlF3 has been measured in 1 atmosphere of argon with an oxygen partial pressure of about 10-17 Pa in the temperature range of 1000-1800ºC.
The wettability of pure aluminium on filter materials and on inclusions is believed to be an important factor affecting the filtration of aluminium. The contact angles of molten aluminium on alumina, SiC and graphite were measured under 10 −8 bar high vacuum in the temperature range of 1000–1300 °C. To describe the wetting …
The wettability of pure aluminium on filter materials and on inclusions is believed to be an important factor affecting the filtration of aluminium. The contact angles of molten aluminium on alumina, SiC and graphite were measured under 10 −8 bar high …
The wettability of pure aluminium on filter materials is believed to be an important factor affecting the filtration of aluminium. ... Wetting between aluminium and Al3C4 (graphite) is determined ...
Fig. 2 Equilibrium partial pressure of gas species in reactions (1) and (2) - "Wetting of pure aluminium on graphite, SiC and Al2O3 in aluminium filtration"
This chapter contains sections titled: Introduction Experimental Procedure Results Discussion Wetting in Filtration Conclusions Future Work Acknowledgment
However, aluminum does not wet graphite, which makes the production of aluminum–graphite composites difficult. Nickel is a material known to be wetted by aluminum. In the presence of a nickel intermediate layer between the aluminum and graphite, wetting of the graphite by aluminum was expected to improve.
This indicates that the improved wetting of aluminium on a filter material is an advantage for molten metal to infiltrate the filter during priming. Also, better wetting of Al-filter might increase the removal efficiency of inclusions during filtration due to better contact between filter and metal. ... Wetting of pure aluminium on graphite ...
13.3.1 Graphite/aluminium composites. ... according to the authors, the poor wetting properties of graphite fiber prevents the vapor in the cavity from being flooded by the liquid once immersed. The results from Wu et al. ... Fig. 19. indicates the worn surfaces of pure milled aluminum and aluminum with 5 wt% CNT. In CNT based composite, a film ...
In addition to wetting properties between inclusions (Al 4 C 3) and molten aluminium, the wettability of the filter (SiC) by aluminium is determined in sessile drop studies in the …
Wetting of Pure Aluminium on Graphite, SiC and Al 2 O 3 in Aluminium Filtration. ... Wetting between aluminium and Al3C4 (graphite) is determined in kinetic studies in the higher temperature ...
In addition, the wetting angel of graphite with Al and high Aluminum Si alloys decreases intensively at temperatures higher than 1100 °C [30]. Thus, Al addition to Si melt increases the melt infiltration to the graphite body. Therefore, graphite crucible cannot hold Si–Al alloys at high temperatures.
U nderstanding the wetting behavior of aluminum on ceramics is crucial for metal-ceramic production of composites. The wettability of aluminum on ceramics also plays an important role in aluminum filtration. Alumina is the most common filter material and is one of the most typical inclusions.
Wetting of Pure Aluminium on Filter Materials Graphite, AlF 3 and Al 2 O 3
Wetting of pure aluminum and selected alloys on polycrystalline ... in an intrusion around the orifice in the graphite syringe is just forced through the pinhole (1.5mm diameter) once the shut ...