F. Appel

6.5k total citations · 3 hit papers
140 papers, 5.5k citations indexed

About

F. Appel is a scholar working on Mechanical Engineering, Materials Chemistry and Atomic and Molecular Physics, and Optics. According to data from OpenAlex, F. Appel has authored 140 papers receiving a total of 5.5k indexed citations (citations by other indexed papers that have themselves been cited), including 123 papers in Mechanical Engineering, 114 papers in Materials Chemistry and 35 papers in Atomic and Molecular Physics, and Optics. Recurrent topics in F. Appel's work include Intermetallics and Advanced Alloy Properties (106 papers), MXene and MAX Phase Materials (67 papers) and Semiconductor materials and interfaces (29 papers). F. Appel is often cited by papers focused on Intermetallics and Advanced Alloy Properties (106 papers), MXene and MAX Phase Materials (67 papers) and Semiconductor materials and interfaces (29 papers). F. Appel collaborates with scholars based in Germany, Austria and Slovakia. F. Appel's co-authors include Richard Wagner, Michael Oehring, Jonathan Paul, Helmut Clemens, F.D. Fischer, U. Messerschmidt, U. Lorenz, R. M. Imayev, V.M. Imayev and P.A. Beaven and has published in prestigious journals such as Applied Physics Letters, Acta Materialia and Progress in Materials Science.

In The Last Decade

F. Appel

137 papers receiving 5.2k citations

Hit Papers

align trajectories

What are hit papers?

Hit papers significantly outperform the citation benchmark for their cohort. A paper qualifies if it has ≥500 total citations, achieves ≥1.5× the top-1% citation threshold for papers in the same subfield and year (this is the minimum needed to enter the top 1%, not the average within it), or reaches the top citation threshold in at least one of its specific research topics.

Gamma Titanium Aluminide Alloys

2011 683 citations F. Appel, Jonathan Paul et al. profile →
Microstructure and deformation of two-phase γ-titanium aluminides

1998 654 citations F. Appel, Richard Wagner profile →
Modeling concepts for intermetallic titanium aluminides

2016 358 citations F. Appel, Helmut Clemens et al. profile →

Peers — A (Enhanced Table)

Peers by citation overlap · career bar shows stage (early→late) cites · hero ref

Name	h						Papers	Cites
F. Appel Germany	36	5.1k	4.3k	1.1k	708	628	140	5.5k
Svea Mayer Austria	35	4.8k 0.9×	3.5k 0.8×	586 0.5×	516 0.7×	633 1.0×	127	4.9k
Michael Oehring Germany	32	3.7k 0.7×	2.8k 0.7×	611 0.5×	402 0.6×	441 0.7×	104	4.1k
H. A. Lipsitt United States	30	3.9k 0.8×	2.4k 0.6×	794 0.7×	628 0.9×	732 1.2×	60	4.3k
J.H. Schneibel United States	41	4.7k 0.9×	2.7k 0.6×	413 0.4×	608 0.9×	1.2k 2.0×	145	5.5k
B. P. Bewlay United States	30	3.6k 0.7×	2.1k 0.5×	977 0.9×	524 0.7×	539 0.9×	94	4.0k
Alain Couret France	32	2.7k 0.5×	2.0k 0.5×	366 0.3×	426 0.6×	473 0.8×	116	3.1k
P. M. Hazzledine United States	35	2.7k 0.5×	2.7k 0.6×	504 0.5×	1.0k 1.4×	192 0.3×	103	3.8k
C.G. McKamey United States	21	3.4k 0.7×	1.7k 0.4×	422 0.4×	267 0.4×	483 0.8×	49	3.7k
N.S. Stoloff United States	30	5.5k 1.1×	2.9k 0.7×	745 0.7×	703 1.0×	717 1.1×	149	6.2k
Yoshinao Mishima Japan	28	2.6k 0.5×	1.8k 0.4×	514 0.5×	432 0.6×	209 0.3×	189	3.3k

Countries citing papers authored by F. Appel

Since Specialization

Citations

This map shows the geographic impact of F. Appel's research. It shows the number of citations coming from papers published by authors working in each country. You can also color the map by specialization and compare the number of citations received by F. Appel with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites F. Appel more than expected).

Fields of papers citing papers by F. Appel

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by F. Appel. Nodes represent research fields, and links connect fields that are likely to share authors. Colored nodes show fields that tend to cite the papers produced by F. Appel. The network helps show where F. Appel may publish in the future.

Co-authorship network of co-authors of F. Appel

This figure shows the co-authorship network connecting the top 25 collaborators of F. Appel. A scholar is included among the top collaborators of F. Appel based on the total number of citations received by their joint publications. Widths of edges represent the number of papers authors have co-authored together. Node borders signify the number of papers an author published with F. Appel. F. Appel is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

Sort: Min cites: Since: Top N: Style:

20 of 20 papers shown

Song, Lin, F. Appel, Wenhao Liu, Florian Pyczak, & Tiebang Zhang. (2023). {1 1 ¯ 01} tension twins and {1 1 ¯ 01}-{2 2 ¯ 01}/{2 2 ¯ 01}-{1 1 ¯ 01} double twins in the D019 ordered hexagonal α2-Ti3Al phase. Acta Materialia. 260. 119335–119335. 12 indexed citations

Appel, F., Thomas Heckel, & Hans‐Jürgen Christ. (2009). Electron microscope characterization of low cycle fatigue in a high-strength multiphase titanium aluminide alloy. International Journal of Fatigue. 32(5). 792–798. 36 indexed citations

Appel, F., Michael Oehring, & Jonathan Paul. (2006). Nano‐Scale Design of TiAl Alloys Based on β‐Phase Decomposition. Advanced Engineering Materials. 8(5). 371–376. 104 indexed citations

Oehring, Michael, et al.. (2006). New approaches to designing alloys based on γ-TiAl + α2-Ti3Al phases. The Physics of Metals and Metallography. 102(1). 105–113. 17 indexed citations

Imayev, R. M., et al.. (2006). New approaches to designing of alloys based on γ-TiAl+α 2-Ti3Al. 11(2). 99–108. 7 indexed citations

Appel, F.. (2005). An electron microscope study of mechanical twinning and fracture in TiAl alloys. The Philosophical Magazine A Journal of Theoretical Experimental and Applied Physics. 85(2-3). 205–231. 61 indexed citations

Imayev, R. M., V.M. Imayev, Michael Oehring, & F. Appel. (2005). Microstructural evolution during hot working of Ti aluminide alloys: Influence of phase constitution and initial casting texture. Metallurgical and Materials Transactions A. 36(3). 859–867. 40 indexed citations

Weller, Martin, Arya Chatterjee, G. Haneczok, et al.. (2001). Creep and internal friction of γ-TiAl Based Alloys. Max Planck Institute for Plasma Physics. 465–473. 1 indexed citations

Appel, F., Michael Oehring, & Richard Wagner. (2000). Novel design concepts for gamma-base titanium aluminide alloys. Intermetallics. 8(9-11). 1283–1312. 339 indexed citations

10.

Oehring, Michael, F. Appel, P.J. Ennis, & Richard Wagner. (1999). A TEM study of deformation processes and microstructural changes during long-term tension creep of a two-phase γ-titanium aluminide alloy. Intermetallics. 7(3-4). 335–345. 35 indexed citations

11.

Salishchev, G.A., O.N. Senkov, R. M. Imayev, et al.. (1999). Processing and Deformation Behavior of Gamma TiAl Alloys with Fine-Grained Equiaxed Microstructures. 6(2). 107–116. 16 indexed citations

12.

Appel, F., et al.. (1998). Effects of dislocation dynamics and microstructure on crack growth mechanisms in two-phase titanium aluminide alloys. Intermetallics. 6(7-8). 603–605. 11 indexed citations

13.

Appel, F., et al.. (1996). Solution and Precipitation Hardening in Carbon-Doped Two-Phase γ-Titanium Aluminides. MRS Proceedings. 460. 14 indexed citations

14.

Kardashev, B. K., et al.. (1985). Acoustic and Electron Microscopy Study of the Dislocation Structure in MgO Crystals. physica status solidi (a). 91(1). 79–87. 6 indexed citations

15.

Appel, F., et al.. (1985). Low temperature deformation of impure MgO single crystals. Materials Science and Engineering. 73. 97–103. 19 indexed citations

16.

Lubenets, S. V., et al.. (1984). The influence of OH⁻‐ions on the mechanical properties in LiF and NaCl single crystals. Crystal Research and Technology. 19(3). 349–356. 3 indexed citations

17.

Messerschmidt, U., F. Appel, Marion Bartsch, & R. Gerlach. (1983). Dislocation motion in a dispersion hardened AlZnMg alloy and its plastic properties. physica status solidi (a). 78(1). 93–102. 7 indexed citations

18.

Messerschmidt, U. & F. Appel. (1979). Principles of the Design of Straining Stages. Kristall und Technik. 14(10). 1245–1248. 1 indexed citations

19.

Appel, F. & U. Messerschmidt. (1979). Dislocation Processes in MgO Single Crystals Observed by In‐situ Deformation in the HVEM. Kristall und Technik. 14(11). 1329–1329. 2 indexed citations

20.

Bartsch, Marion, U. Messerschmidt, & F. Appel. (1979). Relation between the Activation Parameters of the Plastic Deformation in MgO Crystals Determined by Macroscopic and by In‐situ HVEM Experiments. Kristall und Technik. 14(11). 1339–1341. 2 indexed citations

Rankless uses publication and citation data sourced from OpenAlex, an open and comprehensive bibliographic database. While OpenAlex provides broad and valuable coverage of the global research landscape, it—like all bibliographic datasets—has inherent limitations. These include incomplete records, variations in author disambiguation, differences in journal indexing, and delays in data updates. As a result, some metrics and network relationships displayed in Rankless may not fully capture the entirety of a scholar's output or impact.

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