Data Sources and Ranking Methodology
The 5th edition of the Research.com Best Materials Science Scientists in Turkey Ranking has been developed using comprehensive bibliometric data primarily sourced from OpenAlex and CrossRef, supplemented with multiple other authoritative data repositories. The bibliometric data employed to calculate citation-based metrics for this ranking were collected on January 12, 2026. Each scientist’s position within the ranking is determined by their D-index (Discipline H-index), an advanced metric that exclusively considers publication and citation records relevant to the specific discipline under examination, ensuring a focused and accurate reflection of impact within Materials Science.
Scope of Research and Eligibility Criteria
Our evaluation encompassed a broad spectrum of academic disciplines, analyzing 279,971 scientist profiles aggregated from diverse bibliometric data sources. Within this extensive pool, 32 scientists specializing in Materials Science were identified and scrutinized. To qualify for inclusion in this ranking, scientists were required to meet a minimum D-index threshold of 40, with the majority of their tier publications concentrated within the Materials Science domain. Additionally, recognition of their awards and professional achievements in the field was considered to further substantiate their standing.
The threshold for the D-index is dynamically adjusted in increments of 10, calibrated according to the estimated total number of scholars in each discipline. This approach guarantees the inclusion of the top 1% of leading experts within each field. Furthermore, to ensure a strong disciplinary focus, qualifying researchers exhibit a proximity of 30% or less between their general H-index and their D-index, highlighting their specialized impact in Materials Science relative to their overall scholarly output.
Verification and Validation Practices
We recognize the limitations of relying solely on raw bibliometric data to evaluate scientific contributions. Accordingly, all scientist profiles incorporated into the ranking underwent meticulous manual verification. This process involved cross-referencing publication records against a wide range of reliable, reputable sources to confirm accuracy and authenticity. Although the quantity of papers published in prestigious journals and conference proceedings is not directly factored into a researcher’s ranking position, it remains an important secondary indicator of a scientist’s scholarly influence within Materials Science.
The ranking positions are ultimately determined based on each researcher’s D-index, which is calculated from data collated via OpenAlex and CrossRef—two of the most prominent and widely respected bibliometric databases accessible to the global research community. For a comprehensive overview of the methodology and data processes supporting this ranking, we encourage readers to visit our methodology page.
Research.com’s Mission and Vision
At Research.com, our mission is to inspire and enable researchers, industry leaders, and policymakers across the globe to understand the trajectories and impact of leading experts in various scientific disciplines. By providing transparent, rigorously verified rankings, we offer the entire scientific community a reliable means to identify and engage with top-tier researchers—whether at the country level, within specific fields, or across research institutions. Through this initiative, we aim to foster collaboration, recognition, and informed decision-making that advance scientific progress worldwide.
