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Development and testing of copper filters for efficient application in half-face masks

DOI: 10.3390/app12136824 DOI Help

Authors: Beáta Ballóková (The Institute of Materials Research, Slovak Academy of Sciences) , Marián Lázár (Technical University of Košice) , Natália Jasminská (Technical University of Košice) , Zuzana Molčanová (The Institute of Materials Research, Slovak Academy of Sciences) , Stefan Michalik (Diamond Light Source) , Tomáš Brestovič (Technical University of Košice) , Jozef Živčák (Technical University of Košice) , Karol Saksl (The Institute of Materials Research, Slovak Academy of Sciences)
Co-authored by industrial partner: No

Type: Journal Paper
Journal: Applied Sciences , VOL 12

State: Published (Approved)
Published: July 2022
Diamond Proposal Number(s): 28139

Open Access Open Access

Abstract: SARS-CoV-2 is the causative agent of severe acute respiratory diseases. Its main transmission pathway is through large and small respiratory droplets, as well as a direct and indirect contact. In this paper, we present the results of the development and research of copper filters produced by powder technology. Four types of copper powders were tested. Technological parameters, a microstructure, an energy dispersive X-ray (EDX) analysis, and fractography of copper (Cu) filters are reported. The pressure losses in the P-Cu-AW315 filter showed a very favorable value for using the filter in half-face masks that meet the requirements of European norms (EN). An X-ray tomography measurement was carried out at the I12-JEEP beamline. A relative volume of grains and pores was estimated (on the basis of the segmentation results) to be approximately 50% to 50% of the investigated filter volume.

Journal Keywords: copper filters; face mask; SARS-CoV; pressure losses; permeability; X-ray tomography

Diamond Keywords: COVID-19

Subject Areas: Materials, Engineering

Instruments: I12-JEEP: Joint Engineering, Environmental and Processing

Added On: 14/07/2022 09:31


Discipline Tags:

Materials Engineering & Processes Materials Science Engineering & Technology

Technical Tags:

Imaging Tomography