Electrode Erosion Phenomena in a High-Energy Pulsed Discharge

Donaldson, A. L.; Hagler, M.O.; Kristiansen, M.; Jackson, G. L.; Hatfield, L.L.

doi:10.1109/tps.1984.4316289

Cited by 59 publications

(23 citation statements)

References 17 publications

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“…Therefore, the erosion rate of electrode 2 is only half that of electrode 1. If we consider that electrode 2 was mainly the anode, the result that the cathode erosion rate is higher than the anode erosion rate is consistent with gas spark-gap studies, but is also highly dependent on repetition rate and electrode material [18], [21], [23].…”

Section: Spark-gap Erosionsupporting

confidence: 79%

“…During its lifetime, an estimated 35-100 C of charge has been switched by this electrode, which brings the erosion rate of electrode 1 of the oil spark-gap in the range of 200-600 μcm 3 · C −1 . In comparison, brass electrodes in gas SGs have erosion rates in the range of 1-100 μcm 3 · C −1 , with most in the lower part of this range [16], [18], [21]. Therefore, the electrode erosion rate of the brass electrode 1 in the oil spark-gap is on average almost an order higher than the brass electrode erosion rates of gas SGs.…”

Section: Spark-gap Erosionmentioning

confidence: 90%

“…For instance, stainless steel and copper-tungsten alloys seem to outperform brass [18], [20], [21]. Therefore, our new electrodes will be made of stainless steel.…”

Section: Spark-gap Erosionmentioning

confidence: 99%

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Final Implementation of a Subnanosecond Rise Time, Variable Pulse Duration, Variable Amplitude, Repetitive, High-Voltage Pulse Source

Huiskamp

Heesch

Pemen

2015

IEEE Trans. Plasma Sci.

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. (2015). Final implementation of a subnanosecond rise time, variable pulse duration, variable amplitude, repetitive, high-voltage pulse source. IEEE Transactions on Plasma Science, 43(1), 444-451. DOI: 10.1109/TPS.2014 General rights Copyright and moral rights for the publications made accessible in the public portal are retained by the authors and/or other copyright owners and it is a condition of accessing publications that users recognise and abide by the legal requirements associated with these rights.• Users may download and print one copy of any publication from the public portal for the purpose of private study or research.• You may not further distribute the material or use it for any profit-making activity or commercial gain • You may freely distribute the URL identifying the publication in the public portal ? Take down policyIf you believe that this document breaches copyright please contact us providing details, and we will remove access to the work immediately and investigate your claim. Abstract-In this paper, we present the final implementation of our 0-50-kV picosecond rise time 0.5-10-ns pulse generator. The pulse generator will be used in future work to generate a (sub)-nanosecond streamer plasma for air purification research. The pulse generator is a single-line pulse generator with an oil spark-gap (SG), which generates 0.5-10-ns pulses with a 200-ps rise time and can operate at repetition rates of over 1 kHz into a 50-load. It is an improvement over the first implementation of our nanosecond pulse generator that we designed and verified experimentally in previous work. In this paper, we evaluate the performance of the final design. Furthermore, we present 3-D electromagnetic simulations of the nanosecond pulse generator and show that the simulations are in good agreement with the measurements. A variation in pulse duration from 0.5 to 10 ns is possible and the output pulses are square shaped without the large plateau behind the main pulse that was present in the pulses from the first implementation of the nanosecond pulse generator. At high voltages, the pulse top becomes less flat due to a timedependent mismatch in the spark-gap. Furthermore, investigation of electrode erosion of the oil spark-gap shows that the erosion rate of the electrodes is in the range of 200-600 μcm 3 · C −1 for the electrode that is mainly the cathode and 100-300 μcm 3 · C −1 for the electrode that is mainly the anode, respectively. This is almost an order of magnitude higher than most gas spark-gap studies show for brass electrodes. Therefore, electrode erosion in the oil spark-gap will be a limiting factor on the lifetime of the system. We designed a new electrode with a stainless steel head to increase this lifetime.Index Terms-3-D electromagnetic (EM) modeling, electrode erosion, high voltage, nanosecond pulses, oil switch, pulsed power supply, spark-gap (SG).

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Section: Spark-gap Erosionsupporting

confidence: 79%

Section: Spark-gap Erosionmentioning

confidence: 90%

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Final Implementation of a Subnanosecond Rise Time, Variable Pulse Duration, Variable Amplitude, Repetitive, High-Voltage Pulse Source

Huiskamp

Heesch

Pemen

2015

IEEE Trans. Plasma Sci.

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“…Отладочные эксперименты проводились с медными электродами, и значения эрозии медных электродов стали контрольными величинами для сопоставления с данными работ [22][23][24][25]. В наших экспериментах эрозия медного анода не менялась при использовании катода из ВНЖ или меди.…”

Section: поступило в редакцию 15 мая 2018 гunclassified

“…Данные по эрозии произведенных на основе традиционных техноло-гий материалов соответствуют [22][23][24][25].…”

Section: поступило в редакцию 15 мая 2018 гunclassified

Эрозионные Характеристики Композитных Материалов На Основе Меди В Дуге Переменной Длины С Поперечным Продувом Газа

Budin¹,

Pinchuk²,

Kurakina³

2018

Письма В Журнал Технической Физики

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Представлены данные по эрозии электродов из композитных псевдосплавов на основе меди в процессе размыкания контактов при амплитуде тока до 150 kA в среде азота при давлении ∼ 2 MPa с поперечным продувом газа через дугу. Приведены электроэрозионные характеристики псевдосплава меди и железа CuFe (85/15%), получаемого методом лазерной послойной наплавки, а также псевдосплавов CuFe (70/30%) и CuW (25/75%), произведенных традицион-ным методом порошкового сплавления. Удельная эрозия составляет величину ∼ 1 mg/C и несколько превышает эрозию для фиксированного разрядного промежутка.

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Closing Switches

2017

Foundations of Pulsed Power Technology

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Electrode Erosion Phenomena in a High-Energy Pulsed Discharge

Cited by 59 publications

References 17 publications

Final Implementation of a Subnanosecond Rise Time, Variable Pulse Duration, Variable Amplitude, Repetitive, High-Voltage Pulse Source

Final Implementation of a Subnanosecond Rise Time, Variable Pulse Duration, Variable Amplitude, Repetitive, High-Voltage Pulse Source

Эрозионные Характеристики Композитных Материалов На Основе Меди В Дуге Переменной Длины С Поперечным Продувом Газа

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