Dependence of Cm on the composition of solid binary propellants in ablative laser propulsion

Rinaldi, Carlos A.; Boggio, Norberto; Rodríguez, Daniel; Lamagna, A.; Boselli, A.; Manzano, Fernando Ariel; Codnia, Jorge; Azcárate, M. L.

doi:10.1016/j.apsusc.2010.09.045

Cited by 15 publications

(9 citation statements)

References 8 publications

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“…To investigate the impulse and C m generated by laser-induced Al plasma, a typical ballistic pendulum system with angle is adopted [18,37]. Laser energy is imparted vertically to the stationary Al target hung via a rigid wire with negligible mass.…”

Section: Impulse and Coupling Coefficient Measurementmentioning

confidence: 99%

“…where J is the moment of inertia, ω is the angular velocity, m is the ballistic pendulum mass, θ is the angle at which the target deviates from equilibrium, l is the distance from mass center of the pendulum to the axis, P is the impulse, and L is the length of force arm. The moment of inertia is determined by the swing period T which is recorded by a high speed motion analyzer [37], and given as:…”

Section: Impulse and Coupling Coefficient Measurementmentioning

confidence: 99%

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Experimental study on the dynamics and parameters of nanosecond laser-induced aluminum plasma

Yang

Zhou

et al. 2022

J. Phys. D: Appl. Phys.

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In this paper, impulse measurement, spectral diagnostics, temporal evolution images and target ablation are employed to investigate the dynamic behaviors and parameters of Nd:YAG nanosecond laser-induced aluminum plasma at different pressures and laser fluences. The impulses and coupling coefficients generated by laser ablation increase firstly and then reduce with the decrease in pressure for the laser fluences of 17.22 J/cm2 and 20.94 J/cm2, but they only drop at 0.5 Torr for a laser fluence of 6.19 J/cm2. The fast exposure images captured by the high-speed camera and ICCD show that the plasma plumes present the separation at atmospheric pressure and expansion near vacuum, but last longer time at pressures of 150 Torr and 22 Torr. The duration and dynamic property of plasma are responsible for the impulse, as well as are mainly dependent on the characteristics of plasma parameters. Therefore, the electron density and electron temperature are obtained by Stark broadening method and Boltzmann plot, respectively. The change in the electron density is proportional to pressure and laser fluence. The variation trend of the crater depth and ablative mass with pressure is opposite to that of the electron density, which is ascribed to the plasma shielding effect caused by the inverse bremsstrahlung absorption mechanism. Besides, the electron temperature varies inversely with pressure in the detection range due to various recombination processes. This study provides an insight for clarifying the energy conversion mechanism and improving the laser propulsion performance.

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Section: Impulse and Coupling Coefficient Measurementmentioning

confidence: 99%

Section: Impulse and Coupling Coefficient Measurementmentioning

confidence: 99%

Experimental study on the dynamics and parameters of nanosecond laser-induced aluminum plasma

Yang

Zhou

et al. 2022

J. Phys. D: Appl. Phys.

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“…Extensive reviews of laser propulsion propellants and thrusters for space transportation have also been reported [1,3,4]. In a previous work, a series of experiments conducted by Rinaldi et al [5] showed that the intrinsic properties of the binary Zn/CaCO 3 propellant favor the thrust generated by laser ablation. Particularly, maximum values of propulsion were reported for Zn/CaCO 3 compositions between 70/30 and 90/10 % w/w, respectively.…”

Section: Introductionmentioning

confidence: 99%

Design and characterization of nozzles and solid propellants for IR laser propulsion

et al. 2014

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In this article, we present an experimental study of the effect of conical section nozzles coupled to solid targets on laser ablation propulsion. The impulse produced on the target by laser ablation was measured in terms of the coupling coefficient C m using a piezoelectric (PZT) sensor. The standard deviation of the PZT signal was used as an estimator of the transferred impulse. The ablation was performed with a TEA CO 2 laser at room temperature and atmospheric pressure. The targets were pellets of 90/10 % w/w Zn/CaCO 3 concentration ratio. Aluminum nozzles with conical section were coupled to these propellant pellets. A comparative study of the variation of C m using nozzles of different inlet and outlet diameters of the ejected material as well as of different heights was made. The results demonstrate that for the pellet composition analyzed, as the nozzle's height increases and its diameter decreases improvements up to 250 % respect to the target without nozzle are obtained. These are promising results for the potential development of laser ablation microthrusters.

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“…Кроме очень тонких проволок (стальных, серебряных, золотых), используются стеклянные и кварцевые нити [10]; последние ломки, но хороши отсутствием упругого последействия. Крутильные весы непригодны для измерения больших импульсов отдачи [37][38][39][40][41][42][43][44]. В случае приложения силы в плоскости, отклоняющейся от горизонтальной, индуцируются колебания в вертикальной плоскости, могут также возникать крутильные колебания рычага вокруг своей оси, что снижает точность измерений.…”

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On verification of micro-nanonewton range recoil momentum evaluation techniques at solid targets laser ablation

Захаров¹,

Локтионов²,

Протасов³

et al. 2013

EJSI

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Выполнен сравнительный анализ методов экспериментальной регистрации оптико-механических характеристик, в том числе малых и сверхмалых импульсов отдачи (I M ~ 10-12 …10-3 Н  с) при взаимодействии мощного лазерного излучения (I 0 ~ 10 5 …10 15 Вт/см 2) с твердотельными мишенями. Обсуждаются области применения, чувствительность, пространственная и временная разрешающая способность, сложность инструментальной реализации этих диагностических методов, а также взаимное соответствие результатов, полученных с их использованием.

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Dependence of Cm on the composition of solid binary propellants in ablative laser propulsion

Cited by 15 publications

References 8 publications

Experimental study on the dynamics and parameters of nanosecond laser-induced aluminum plasma

Experimental study on the dynamics and parameters of nanosecond laser-induced aluminum plasma

Design and characterization of nozzles and solid propellants for IR laser propulsion

On verification of micro-nanonewton range recoil momentum evaluation techniques at solid targets laser ablation

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