Mechanical properties of LSI based 3D-stitched-C-SiC composites prepared by coal–tar pitch as carbon precursor

2008 ◽  
Vol 58 (10) ◽  
pp. 826-829 ◽  
Author(s):  
K. Suresh ◽  
K. Sweety ◽  
K. Anil ◽  
S. Anupam ◽  
A.K. Gupta ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Coal Tar ◽  
Coal Tar Pitch ◽  
Carbon Precursor ◽  
Sic Composites

Preparation of High Density Graphite Materials from Coal Tar Pitch

1994 ◽  
Vol 349 ◽  
Author(s):  
Yang-Duk Park ◽  
Chul-Woo Kim ◽  
Young-Dae Seo
Keyword(s):  
Mechanical Properties ◽  
Coal Tar ◽  
Resin Content ◽  
High Density ◽  
Coal Tar Pitch ◽  
Wet Milling ◽  
Density Graphite ◽  
Milling Method

ABSTRACTPreparation of high density graphite materials from coal tar pitch was investigated. The effect of β-resin content on the mechanical properties of graphite solid prepared from semi-coke, which was prepared by wet milling method, was examined. β-Resin content was effective for fabrication of green bodies without lamination and for improving the mechanical properties of graphite materials.

Study on Preparation of Activated Carbon Precursor from Medium Temperature Coal Tar Pitch

2013 ◽  
Vol 726-731 ◽  
pp. 712-715 ◽  
Author(s):  
Shu Guang Ouyang ◽  
Rong Guang Xu
Keyword(s):  
Activated Carbon ◽  
High Performance ◽  
Coal Tar ◽  
Absorption Capacity ◽  
Carbonization Temperature ◽  
Coal Tar Pitch ◽  
Carbon Precursor ◽  
Optimal Method ◽  
Medium Temperature ◽  
Adsorption Capacities

In order to explore the optimal method to prepare high performance activated carbon precursors from medium temperature coal tar pitch, orthogonal tests are adopted to study the effects of oxygen-blowing time in the pretreatment process as well as carbonization temperature and carbonization time in activation and carbonization processes on the adsorption capacities of activated carbon. Moreover, the effects of additives (coke powder and anionic surfactant) on the adsorption capacities of activated carbon are examined. The results show that the factors affecting the adsorption capacities of pitch-based activated carbon, in order of importance, are carbonization temperature, oxygen-blowing time, carbonization time and additives. The optimal conditions for preparation of activated carbon precursor from medium temperature pitch are: 4h for oxygen-blowing time, 400°C for carbonization temperature, 60 minutes for carbonization time and no additives. The iodine absorption capacity of the prepared activated carbon precursor which is activated for 100 min at 800°C is 1739mg/g.

scholarly journals Cast Steel Filtration Trials Using Ceramic-Carbon Filters

2014 ◽  
Vol 14 (4) ◽  
pp. 61-66 ◽  
Author(s):  
B. Lipowska ◽  
J. Witek ◽  
T. Wala ◽  
A. Karwiński ◽  
P. Wieliczko ◽  
...  
Keyword(s):  
Surface Reaction ◽  
Cast Steel ◽  
Coal Tar ◽  
The Other ◽  
Coal Tar Pitch ◽  
Carbon Precursor ◽  
Flake Graphite ◽  
Before And After ◽  
Lower Temperature ◽  
Secondary Contamination

Abstract Trials of cast steel filtration using two types of newly-developed foam filters in which carbon was the phase binding ceramic particles have been conducted. In one of the filters the source of carbon was flake graphite and coal-tar pitch, while in the other one graphite was replaced by a cheaper carbon precursor. The newly-developed filters are fired at 1000°C, i.e. at a much lower temperature than the currently applied ZrO2-based filters. During filtration trials the filters were subjected to the attack of a flowing metal stream having a temperature of 1650°C for 30 seconds. Characteristic of the filters’ properties before and after the filtration trial were done. It was found, that the surface reaction of the filter walls with molten metal, which resulted in local changes of the microstructure and phase composition, did not affect on expected filter lifetime and filtration did not cause secondary contamination of cast steel.

Microstructure and mechanical properties of coal tar pitch-based 2D-C/C composites with a filler addition

Carbon ◽  
2001 ◽  
Vol 39 (13) ◽  
pp. 2065-2075 ◽  
Author(s):  
G Chollon ◽  
O Siron ◽  
J Takahashi ◽  
H Yamauchi ◽  
K Maeda ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Coal Tar ◽  
Coal Tar Pitch ◽  
Microstructure And Mechanical Properties

scholarly journals The Effect of Oxygen Content in Binderless Cokes for High-Density Carbon Blocks from Coal Tar Pitch

Materials ◽  
2021 ◽  
Vol 14 (8) ◽  
pp. 1832
Author(s):  
Seungjoo Park ◽  
Seon Ho Lee ◽  
Song Mi Lee ◽  
Jin-Woo Park ◽  
Sung-Soo Kim ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Mechanical Strength ◽  
Oxygen Content ◽  
Flow Rate ◽  
Coal Tar ◽  
High Density ◽  
Coal Tar Pitch ◽  
Air Flow Rate ◽  
Carbon Block ◽  
Effect Of Oxygen

High-density carbon blocks are much lighter than metals and have excellent mechanical properties and are one of the materials garnering attention to replace existing metal parts. In this study, a binderless coke was produced by changing the flow rates of nitrogen and air as a carrier gas during heat treatment of coal tar pitch and using this, a green body was formed at 150 MPa and carbonized to produce a high-density carbon block. We express the binderless coke produced in this way by N10A0, N7A3, N5A5, N3A7, N0A10 according to the ratio of nitrogen and air, and in the case of carbon block, we have added CB in front of it. We then considered the effect of oxygen content in the binderless cokes on the optical, chemical, and mechanical properties. It was observed that the produced binderless cokes develop into a dense mosaic structure with a small particle size as the air flow rate increased. To survey the change in oxygen content of the produced binderless coke, O1s and C1s regions were measured using X-ray photoelectric spectroscopy (XPS), and O1s/C1s was calculated. The O1s/C1s ratio steadily increased as the air flow rate increased, and in the case of N0A10, it increased about twice as much as that of N10A0 to 11.20%. β-resin has a very large effect on the mechanical strength of the carbon block in addition to air in the pitch. And in the case of CB-N0A10, it shows the best mechanical strength with a density of 1.72 g/cm3, bending strength of 87 MPa, and shore hardness of 93 HSD.

The effects of inherent solid particulates on the structure and mechanical properties of coal-tar pitch based C–C composites

2000 ◽  
Vol 10 (12) ◽  
pp. 2637-2641
Author(s):  
E. Casal ◽  
J. Viña ◽  
J. Bonhomme ◽  
M. Granda ◽  
R. Menéndez
Keyword(s):  
Mechanical Properties ◽  
Coal Tar ◽  
Coal Tar Pitch ◽  
Solid Particulates

Mesophase from electrode-binder coal-tar pitch: An appraisal of structural techniques

1981 ◽  
Vol 31 (1) ◽  
pp. 535-540 ◽  
Author(s):  
John A. G. Drake ◽  
Derry W. Jones ◽  
Clifford R. Mason
Keyword(s):  
Coal Tar ◽  
Coal Tar Pitch ◽  
Electrode Binder
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