TEM Micrographs (image) Helmholtz-Zentrum Berlin für Materialien und Energie Share Print E-Mail Caption The TEM micrographs reveal how small spheres (dark areas) initially form through heating (b), coalesce into platelets (c), until they split the γ precipitates (d-f). Scale bar widths: 100 nm. Credit HZB Usage Restrictions None Share Print E-Mail Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.