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Micromachines, Volume 13, Issue 8

August 2022 - 208 articles

Cover Story: Spatter is an inherent, unpreventable, and undesired phenomenon in laser powder bed fusion (L-PBF). Spatter behavior has an intrinsic correlation with the forming quality because it leads to metallurgical defects and the degradation of mechanical properties. This impact becomes more severe in the fabrication of large-sized parts during multi-beam L-PBF. Therefore, investigations of spatter generation and countermeasures have become more urgent. Although much research has provided insights into the melt pool, microstructure, and mechanical property, reviews of spatter in L-PBF are still limited. This work reviews the literature on the in situ detection, generation, effects, and countermeasures of spatter in L-PBF. It is expected to pave the way toward a novel generation of highly efficient and intelligent L-PBF systems. View this paper
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Articles (208)

  • Feature Paper
  • Review
  • Open Access
116 Citations
15,287 Views
41 Pages

A Review of Spatter in Laser Powder Bed Fusion Additive Manufacturing: In Situ Detection, Generation, Effects, and Countermeasures

  • Zheng Li,
  • Hao Li,
  • Jie Yin,
  • Yan Li,
  • Zhenguo Nie,
  • Xiangyou Li,
  • Deyong You,
  • Kai Guan,
  • Wei Duan and
  • Longchao Cao
  • + 9 authors

22 August 2022

Spatter is an inherent, unpreventable, and undesired phenomenon in laser powder bed fusion (L-PBF) additive manufacturing. Spatter behavior has an intrinsic correlation with the forming quality in L-PBF because it leads to metallurgical defects and t...

  • Article
  • Open Access
4 Citations
3,657 Views
12 Pages

22 August 2022

Cyclic-olefin-copolymer (COC)-based microfluidic devices are increasingly becoming the center of highly valuable research for in situ X-ray measurements due to their compatibility with X-rays, biological compounds, chemical resistance, optical proper...

  • Article
  • Open Access
2 Citations
2,605 Views
12 Pages

Enabling Intelligent IoTs for Histopathology Image Analysis Using Convolutional Neural Networks

  • Mohammed H. Alali,
  • Arman Roohi,
  • Shaahin Angizi and
  • Jitender S. Deogun

22 August 2022

Medical imaging is an essential data source that has been leveraged worldwide in healthcare systems. In pathology, histopathology images are used for cancer diagnosis, whereas these images are very complex and their analyses by pathologists require l...

  • Review
  • Open Access
43 Citations
7,464 Views
22 Pages

Modular Microfluidics: Current Status and Future Prospects

  • Xiaochen Lai,
  • Mingpeng Yang,
  • Hao Wu and
  • Dachao Li

22 August 2022

This review mainly studies the development status, limitations, and future directions of modular microfluidic systems. Microfluidic technology is an important tool platform for scientific research and plays an important role in various fields. With t...

  • Feature Paper
  • Article
  • Open Access
5 Citations
3,770 Views
13 Pages

Acoustic Manipulation of Intraocular Particles

  • Ari Leshno,
  • Avraham Kenigsberg,
  • Heli Peleg-Levy,
  • Silvia Piperno,
  • Alon Skaat and
  • Hagay Shpaisman

21 August 2022

Various conditions cause dispersions of particulate matter to circulate inside the anterior chamber of a human eye. These dispersed particles might reduce visual acuity or promote elevation of intraocular pressure (IOP), causing secondary complicatio...

  • Article
  • Open Access
2 Citations
2,093 Views
16 Pages

Effect of the Deposition Time on the Structural, 3D Vertical Growth, and Electrical Conductivity Properties of Electrodeposited Anatase–Rutile Nanostructured Thin Films

  • Moisés do Amaral Amâncio,
  • Yonny Romaguera-Barcelay,
  • Robert Saraiva Matos,
  • Marcelo Amanajás Pires,
  • Ariamna María Dip Gandarilla,
  • Marcus Valério Botelho do Nascimento,
  • Francisco Xavier Nobre,
  • Ştefan Ţălu,
  • Henrique Duarte da Fonseca Filho and
  • Walter Ricardo Brito

21 August 2022

TiO2 time-dependent electrodeposited thin films were synthesized using an electrophoretic apparatus. The XRD analysis revealed that the films could exhibit a crystalline structure composed of ~81% anatase and ~6% rutile after 10 s of deposition, with...

  • Feature Paper
  • Article
  • Open Access
3 Citations
2,761 Views
12 Pages

Integrated Amplitude and Phase Monitor for Micro-Actuators

  • Sandra Nicole Manosalvas-Kjono,
  • Ronald Quan and
  • Olav Solgaard

20 August 2022

Micro-actuators driven on resonance maximize reach and speed; however, due to their sensitivity to environmental factors (e.g., temperature and air pressure), the amplitude and phase response must be monitored to achieve an accurate actuator position...

  • Article
  • Open Access
15 Citations
7,254 Views
15 Pages

Pressure-Driven Perfusion System to Control, Multiplex and Recirculate Cell Culture Medium for Organs-on-Chips

  • Mees N. S. de Graaf,
  • Aisen Vivas,
  • Andries D. van der Meer,
  • Christine L. Mummery and
  • Valeria V. Orlova

20 August 2022

Organ-on-chip (OoC) devices are increasingly used to mimic the tissue microenvironment of cells in intact organs. This includes microchannels to mimic, for example, fluidic flow through blood vessels. Present methods for controlling microfluidic flow...

  • Review
  • Open Access
4 Citations
2,888 Views
22 Pages

20 August 2022

The highly-oriented structures in biological tissues play an important role in determining the functions of the tissues. In order to artificially fabricate oriented nanostructures similar to biological tissues, it is necessary to understand the orien...

  • Article
  • Open Access
30 Citations
8,201 Views
10 Pages

20 August 2022

We present a robust, low-cost fabrication method for implementation in multilayer soft photolithography to create a PDMS microfluidic chip with features possessing multiple height levels. This fabrication method requires neither a cleanroom facility...

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Micromachines - ISSN 2072-666X