SUBJECT
Particle size distribution
Publications on particle size distributions, fines and coarse fractions, distribution width, and the effects of size distribution on powder behavior and processing.
PUBLICATIONS
Browse publications
Explore PTI articles, Insights, Know How, and technical publications related to this subject.
10 October 2026Cyclone Separation of Fine Powders: Cut Size, Efficiency Curves, and Agglomeration
The classical cyclone cut size model assumes discrete, non-agglomerating particles. Cohesive or moisture-sensitive fines can travel through a cyclone as agglomerates instead, which changes what a PSD result actually tells you about classifier performance.
Feature Article
12 September 2026Powder-Fed Laser Cladding: Why Stable Feed Rate Does Not Guarantee Stable Deposition
In powder-fed laser cladding, a stable feeder setpoint and an in-spec particle size distribution do not guarantee a stable deposit. Catchment efficiency and stream divergence sit between the feeder and the melt pool, and both can drift independently of the powder's PSD.
Insights
5 September 2026GRCop-42 and the Copper Powder Feedstock Problem in Laser Powder Bed Fusion
Copper reflects most near-infrared laser light and conducts absorbed heat away faster than almost any other engineering metal. GRCop-42's move into commercial powder catalogs shows how feedstock morphology, oxide content, and particle size distribution are being engineered around that problem rather than worked around it.
Feature Article
11 July 2026What Rotary Airlocks Actually Do to Powder
Rotary airlocks function as pressure boundaries as much as metering devices. The rotor tip clearance governs particle attrition at the nip zone and the rate of fine-particle bypass under differential pressure. As clearance widens through wear, the downstream particle size distribution shifts in a pattern frequently misread as upstream process variation.
Insights
23 May 2026Fines in Powder Behavior: Why Small Amounts Matter
Fines in powder behavior matter because fine particles add surface area, contact [...]
Insights
2 May 2026Particle Size Distribution Interpretation: Reading D10, D50, D90, Fines, and Oversize in Process Context
Particle size distribution interpretation has the most value when the curve explains [...]
Know How
20 December 2025Graphite Under the Tree
In the Holiday rush, winter humidity shifts and faster throughput can break [...]
Feature Article
4 October 2025Powder Segregation Test: The 20 Minute Bottle Method
Most blend failures start with segregation during transfer. Run a 20 minute [...]
Insights
20 September 2025Material Characterization with AI-Assisted Analytics
AI-assisted material characterization speeds testing, strengthens models, and improves inline control. Labs [...]
Feature Article
23 August 2025Hard Carbon in Sodium-Ion Batteries: Moisture Control, Powder QA, and Line Readiness
Hard carbon sodium-ion batteries are a match made in heaven. When moisture [...]
Feature Article
13 July 2025AI-Assisted In-Line Particle Size Monitoring: What the Evidence Supports
AI-assisted direct imaging can turn difficult process images into usable particle-size information [...]
Insights
25 May 2025Powder Technologies Within Circular Systems
In a circular economy, powder testing is no longer just a checkpoint—it [...]
Feature Article