Corrosion behavior of TaC/Ta composite coatings on C17200 alloy by plasma surface alloying and CVD carburizing

Xi, Wen; Ding, Wenqiang; Yu, Shengwang; Lin, Naiming; Meng, T.X.; Guo, Qianqian; Liu, Xiaozhen; Liu, Xiaoping

doi:10.1016/j.surfcoat.2018.12.074

Cited by 20 publications

(6 citation statements)

References 29 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…These observations confirm the elemental composition of the sample as C, Ta, and O elements, which aligns with previous experimental findings. Furthermore, owing to the disparate electronegativity of carbon and oxygen, these atoms can function as the dipole’s polarization center, thereby augmenting the polarization loss . The XPS spectrum of C 1s (Figure b) displayed three distinct peaks at energies of 283.8, 284.8, and 285.5 eV, indicating the presence of Ta–C, C–C, and C–O bonds …”

Section: Resultsmentioning

confidence: 99%

“…Furthermore, owing to the disparate electronegativity of carbon and oxygen, these atoms can function as the dipole's polarization center, thereby augmenting the polarization loss. 32 The XPS spectrum of C 1s (Figure 4b) displayed three distinct peaks at energies of 283.8, 284.8, and 285.5 eV, indicating the presence of Ta−C, C−C, and C− O bonds. 33 34 The XPS spectra of Ta 4f exhibit three distinct peaks at energy levels of 24.3, 26.2, and 27.8 eV, which correspond to Ta 4 f 7/2 (Ta−C), Ta 4 f 5/2 (Ta−C), and Ta 4 f 5/2 (Ta−O) (Figure 4d).…”

Section: Characterizationmentioning

confidence: 99%

See 1 more Smart Citation

Amorphous Carbon Regulates Defects to Achieve TaC Nanowires with Enhanced Microwave Absorption

Wen,

Guan,

Zhang

et al. 2024

ACS Appl. Nano Mater.

View full text Add to dashboard Cite

Carbon/carbon composite materials, as electromagnetic wave-absorbing (EWA) materials, have been widely studied due to their excellent impedance matching and high dielectric loss. In this work, we introduced amorphous carbon into the TaC nanowire (TaC nws ) matrix, effectively optimizing impedance matching. The inclusion of amorphous carbon introduces a substantial quantity of imperfections and interfaces, thereby promoting polarization. The multipolarization loss and magnetic loss mechanism generate electromagnetic synergistic loss effects, significantly improving the attenuation performance of EW. The TaC nws /C sample exhibits exceptional EWA performance, achieving a minimum reflection loss (RL min ) of −54.25 dB and an effective absorption bandwidth (EAB) of 3.6 GHz at a low thickness of merely 1.4 mm. This study presents a novel methodology for the future fabrication of TMC composite materials, thereby holding substantial research implications.

show abstract

Section: Resultsmentioning

confidence: 99%

Section: Characterizationmentioning

confidence: 99%

Amorphous Carbon Regulates Defects to Achieve TaC Nanowires with Enhanced Microwave Absorption

Wen,

Guan,

Zhang

et al. 2024

ACS Appl. Nano Mater.

View full text Add to dashboard Cite

show abstract

“…Figure 4B shows the C 1s spectrum, and the peak at 284.6 eV can be attributed to the C-C bond, indicating the presence of carbon elements . 32 The peak at 283.3 eV is related to the Nb-C bond, and the peak at 288.4 eV is associated with C-O-C bond, indicating that the carbon phase in the product contains many defects . 33 Two peaks were detected in the O 1s spectrum (Figure 4C), with the main peak at 532.1 eV being adsorbed oxygen and the small peak at 530.1 eV belonging to the Nb-O bond .…”

Section: Resultsmentioning

confidence: 99%

Natural bamboo‐derived NbC nanowires for efficient electromagnetic wave absorption

Wen,

Zhang,

Guan

et al. 2023

J Am Ceram Soc.

View full text Add to dashboard Cite

Transition metal carbides (TMCs) are a class of materials with excellent dielectric properties and thermal stability, which exhibit enormous potential in high temperature electromagnetic wave absorption (EWA). However, the high dielectric constant and electrical conductivity of TMCs usually cause impedance mismatch, and their high density also prevents further practical applications. To solve these problems, the lightweight and impedance matching NbC nanowires (NbCnws) were prepared by using bamboo powder as a carbon source and subsequent carbothermal reduction reaction process. The as‐synthesized NbCnws all exhibit a low density of 0.23 g/cm3 and superior EMA performance. It is worth noting that the minimum reflection loss (RLmin) of the sample is −43.03 dB at 5.92 GHz and the corresponding matching thickness is only 3.7 mm when sintering temperature is 1500°C. The excellent electromagnetic wave absorption (EWA) performance is attributed to good impedance matching and strong dielectric loss. This research work provides a prospect for the development and utilization of one‐dimensional TMC materials in the field of microwave absorption materials.

show abstract

“…Graphene deposition with the use of this method turned out to be less complicated, more economical, and allowed large-scale graphene deposition [ 18 ]. Some papers reported graphene and GO deposition in terms of corrosion resistance [ 19 , 20 ] properties and improvement of electric [ 21 ] and material [ 22 ] properties. When analyzing medical applications of graphene, one can find reports about cell [ 23 ] and bacterial cytotoxicity [ 24 , 25 ].…”

Section: Introductionmentioning

confidence: 99%

Graphene Oxide Aerosol Deposition and its Influence on Cancer Cells. Preliminary Results

et al. 2020

View full text Add to dashboard Cite

This paper presents the results of the interaction of graphene oxide (GO) on MDA-MB-231 and SW-954 cancer cell lines. The tests were carried out in two variants. In the first one, GO was sprayed on a Petri dish and then, the cancer cell lines were cultured. In the second variant, the cells were covered with an aerosol containing GO. In both variants, cancer cell lines were incubated and tested every 24, 48, and 72 h. After each time period, cell viability and surface morphology were measured. The tests after 72 h showed that coating with GO aerosol caused a reduction in cell viability by 52.7% and 26.4% for MDA-MB-231 and SW-954 cancer cell lines, respectively, with respect to a reference sample (without the influence of GO aerosol). Tests where GO is a culture medium demonstrated a decrease in cell viability by approximately 4.3% compared to a reference sample for both considered cell lines.

show abstract

Corrosion behavior of TaC/Ta composite coatings on C17200 alloy by plasma surface alloying and CVD carburizing

Cited by 20 publications

References 29 publications

Amorphous Carbon Regulates Defects to Achieve TaC Nanowires with Enhanced Microwave Absorption

Amorphous Carbon Regulates Defects to Achieve TaC Nanowires with Enhanced Microwave Absorption

Natural bamboo‐derived NbC nanowires for efficient electromagnetic wave absorption

Graphene Oxide Aerosol Deposition and its Influence on Cancer Cells. Preliminary Results

Contact Info

Product

Resources

About