Preparation and Characterization of Coal Pitch-Based Needle Coke (Part II): The Effects of β Resin in Refined Coal Pitch

2020 ◽  
Vol 34 (2) ◽  
pp. 2126-2134
Author(s):  
Yaming Zhu ◽  
Chaoshuai Hu ◽  
Yunliang Xu ◽  
Chunlei Zhao ◽  
Xitao Yin ◽  
...  
Keyword(s):  
Coal Pitch ◽  
Needle Coke

Preparation and Characterization of Coal Pitch-Based Needle Coke (Part I): The Effects of Aromatic Index (fa) in Refined Coal Pitch

2019 ◽  
Vol 33 (4) ◽  
pp. 3456-3464 ◽  
Author(s):  
Yaming Zhu ◽  
Chunlei Zhao ◽  
Yunliang Xu ◽  
Chaoshuai Hu ◽  
Xuefei Zhao
Keyword(s):  
Coal Pitch ◽  
Needle Coke

Preparation and Characterization of Coal-Pitch-Based Needle Coke (Part III): The Effects of Quinoline Insoluble in Coal Tar Pitch

2020 ◽  
Vol 34 (7) ◽  
pp. 8676-8684
Author(s):  
Yaming Zhu ◽  
Huimei Liu ◽  
Yunliang Xu ◽  
Chaoshuai Hu ◽  
Chunlei Zhao ◽  
...  
Keyword(s):  
Coal Tar ◽  
Coal Tar Pitch ◽  
Coal Pitch ◽  
Needle Coke

Synthesis and Characterization of Phenol-Formaldehyde Resin Coated Graphitized Needle Coke

2011 ◽  
Vol 347-353 ◽  
pp. 3365-3369
Author(s):  
Guang Zhi Yang ◽  
Jia Ni Xuan ◽  
Dong Feng Li ◽  
Han Xun Qiu ◽  
Jun He Yang
Keyword(s):  
Phenol Formaldehyde ◽  
Phenol Formaldehyde Resin ◽  
Carbon Residue ◽  
Alcohol Solution ◽  
Formaldehyde Resin ◽  
Needle Coke ◽  
Uniform Coating ◽  
Coated Materials ◽  
Long Time

Phenol-formaldehyde (PF) resin coated graphitized needle coke was synthesized by mixing graphitized needle coke with PF alcohol solution, stirring for a long time and then drying. Different processes of direct drying and drying followed filtration were performed to see the effect of coating. The coated materials were also carbonized, graphitized and then characterized. Experiment showed that filtration before dryness process can lead to uniform coating. The concentration of PF resin had an important effect on the coating amount of PF resin. When the PF resin concentration was 30% (wt%), the content of PF resin coated could possibly attain 15% (wt%) for the most. After carbonization, only small amount of carbon residue from PF resin was left which did not affect the crystal structure of graphitized needle coke.

Preparation and characterization of mosaic coke from heavy‐phase coal pitch

2019 ◽  
Vol 14 (6) ◽  
Author(s):  
Yaming Zhu ◽  
Yunliang Xu ◽  
Chaoshuai Hu ◽  
Xitao Yin ◽  
Chunlei Zhao ◽  
...  
Keyword(s):  
Coal Pitch ◽  
Heavy Phase

Morphological Characterization of Mycobacteriophage R1

1974 ◽  
Vol 32 ◽  
pp. 254-255
Author(s):  
B. L. Soloff ◽  
T. A. Rado
Keyword(s):  
Carbon Source ◽  
Stationary Phase ◽  
Growth Phase ◽  
Minimal Medium ◽  
Morphological Characterization ◽  
Logarithmic Growth Phase ◽  
Complete Lysis ◽  
Lysogenic Culture ◽  
Logarithmic Growth

Mycobacteriophage R1 was originally isolated from a lysogenic culture of M. butyricum. The virus was propagated on a leucine-requiring derivative of M. smegmatis, 607 leu−, isolated by nitrosoguanidine mutagenesis of typestrain ATCC 607. Growth was accomplished in a minimal medium containing glycerol and glucose as carbon source and enriched by the addition of 80 μg/ ml L-leucine. Bacteria in early logarithmic growth phase were infected with virus at a multiplicity of 5, and incubated with aeration for 8 hours. The partially lysed suspension was diluted 1:10 in growth medium and incubated for a further 8 hours. This permitted stationary phase cells to re-enter logarithmic growth and resulted in complete lysis of the culture.

AEM analysis of crystallization in Ti-based amorphous alloys

1983 ◽  
Vol 41 ◽  
pp. 270-271
Author(s):  
A.R. Pelton ◽  
A.F. Marshall ◽  
Y.S. Lee
Keyword(s):  
Magnetic Properties ◽  
Amorphous Alloys ◽  
Amorphous Materials ◽  
Isothermal Annealing ◽  
Amorphous Matrix ◽  
Nucleation And Growth ◽  
Current Interest ◽  
Amorphous Films ◽  
Electrical And Magnetic Properties

Amorphous materials are of current interest due to their desirable mechanical, electrical and magnetic properties. Furthermore, crystallizing amorphous alloys provides an avenue for discerning sequential and competitive phases thus allowing access to otherwise inaccessible crystalline structures. Previous studies have shown the benefits of using AEM to determine crystal structures and compositions of partially crystallized alloys. The present paper will discuss the AEM characterization of crystallized Cu-Ti and Ni-Ti amorphous films.Cu60Ti40: The amorphous alloy Cu60Ti40, when continuously heated, forms a simple intermediate, macrocrystalline phase which then transforms to the ordered, equilibrium Cu3Ti2 phase. However, contrary to what one would expect from kinetic considerations, isothermal annealing below the isochronal crystallization temperature results in direct nucleation and growth of Cu3Ti2 from the amorphous matrix.

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