Work

Low-Cost Laser Powder Bed Fusion-Based Additive Manufacturing of Densified Ceramics

Year: 2025

Type: article

Abstract: This article investigates the feasibility of additively manufacturing densified alumina-based ceramics using laser powder bed fusion (LPBF) with ceramic substrates at low cost. Relationships between process parameters and geometric bead characteristics are quantified using Canny edge detection methods. A set of process parameters that result in continuous melt pool formation and solidification is presented. Remelting and intralayer fusion are also identified, demonstrating for the first time that a low-cost diode laser can achieve densification in an impure RTG substrate, indicating that densification and intralayer fusion are achievable.

Source: Applied Sciences

DOI: 10.3390/app152212091

Authors: Sean K. Brownlee, Yingtao Liu

Institution: University of Oklahoma

Language: English

Topic: Additive Manufacturing Materials and Processes

Subfield: Mechanical Engineering

Field: Engineering

Domain: Physical Sciences

Open Access status: gold

Estimated APC paid: $2,896

Funder: University of Oklahoma