Review of 'New paradigm of a metastable phase diagram presenting structural transformations induced by annealing of Si–C–N amorphous ceramics derived from polymer precursors'

This article explores the metastable phase diagram of Si–C–N amorphous ceramics, focusing on structural transformations resulting from annealing processes. The authors provide a novel perspective that could enhance our understanding of these materials and their applications.

Strengths:

1. Innovative Framework: The introduction of a new paradigm for understanding phase behavior is a significant contribution, offering fresh insights into material science.
2. Experimental Rigor: The experimental methodology is robust, with clear descriptions of the annealing processes and characterization techniques used.
3. Impactful Findings: The observed structural transformations have important implications for the development of high-performance ceramics.

Areas for Improvement:

1. Clarity of Presentation: Some sections, particularly the phase diagrams, could be presented more clearly. Enhanced labeling and explanations would aid reader comprehension.
2. Contextualization: A more comprehensive review of related literature would help situate the findings within the broader field, highlighting their novelty.
3. Limitations and Future Work: Discussing potential limitations of the study and suggesting future research directions would strengthen the manuscript.

Specific Comments:

Thermodynamic equilibria are presented and uptaded in computational metadata files previously existing gibbs free energy data. This is an important finding to the future researchers on this area.

Conclusion: This article offers valuable insights into the structural transformations of Si–C–N ceramics through annealing. With some revisions to enhance clarity and depth, it has the potential to make a significant impact in the field of material science.