Study of Dynamic Viscoelasticity of a Mineral Oil-Based Magnetic Fluid
, Hujun Wang 3,*, Chengyao Deng 4,5, Jiahao Dong 4,5, Zhongru Song 2 and Zhenkun Li 4,5,*
Round 1
Reviewer 1 Report
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Reviewer 2 Report
In this paper, the dynamic viscoelasticity of a homemade mineral oil-based magnetic fluid was inves-tigated under oscillatory shear experimental conditions using an MCR302 rheometer, and the effects of different temperatures and magnetic fields on the dynamic viscoelasticity were examined.
However, the author only analizes a homemade mineral oil-based magnetic fluid. no obvious novelty was found. maybe,the author can highlight its advantages by comparing or other methods.
There are a few english grammar errors
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Reviewer 3 Report
The authors in one article presented a large-scale study of the viscoelastic parameters of a magnetic fluid from three physical influences: temperature, magnetic field, and mechanical oscillations. This study is original and of undoubted interest to specialists in magnetic fluids.
Several comments can be made on the article:
1. The main remark on the work is a very small review of the work done earlier by other researchers. The authors used an experimental method that is the most sensitive for analyzing the formation of structures. This is emphasized in many reviews, such as 10.1016/j.cis.2022.102729, 10.1088/2053-1591/ab44e9 and many others. There is no review and comparison in the experimental part with studies of the viscoelastic characteristics of the magnetic fluid, performed by this method by other authors, both in the torsional vibrations of the cup and in the oscillations of the levitating volume of the magnetic fluid.
2. Graph 2 needs to be renamed to magnetization curve. Ferrofluids do not have hysteresis.
3. Section “3.1. Amplitude sweeps at different magnetic field strengths” 3 paragraph the last sentence is incorrect both from the point of view of physics and the English language “more and more chains wind up to form a columnar structure with a larger diameter”. It needs to be redone with an adequate physical description. Reference to work [20] devoted to the study of elastomers is incorrect, similar effects were observed in works on the viscosity of magnetic fluids 10.3390/fluids8020047, 10.1016/j.cplett.2009.08.033 and other articles by these authors.
4. In the paper, the dependences of the viscosity of the magnetic fluid are not given for any of the experiments. Their presence would improve performance.
5. The authors in one article conducted a large-scale study of the viscoelastic parameters of the magnetic fluid from three physical influences: temperature, magnetic field and mechanical oscillations. The reviewer is aware of only three similar works: 10.18869/acadpub.jafm.68.225.24022, 10.1016/j.jmmm.2013.07.033, 10.1016/j.molliq.2023.121887. Comparison with the results of these works is necessary to substantiate the data obtained.
The research part needs minor corrections, but the introduction and conclusions need to be significantly adjusted.
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Round 2
Reviewer 1 Report
The corrections have been made.
Reviewer 3 Report
All necessary corrections were made. Article can be published.
